Anatomy subcategory

Head and Neck

Mnemonics for cranial nerves, extraocular muscles and head and neck anatomy.

Entries in Head and Neck

Accessory Nerve Palsy Sign Mnemonic

Shoulder droops, can't shrug or turn the head away from the injured side

Mnemonic for the clinical signs of an accessory nerve palsy.

Head and Neck
Accommodation Reflex Triad Mnemonic

Converge, constrict, contract the lens, three C's when you look up close

Mnemonic for the three components of the accommodation reflex.

Head and Neck
Adult Tooth Formula per Quadrant Mnemonic

I Can Predict Molars

Mnemonic for the number of each tooth type in one quadrant of the adult mouth.

Head and Neck
Air Fluid Level in Sinusitis Mnemonic

A flat line on X-ray tells the tale, fluid pooling in a blocked sinus trail

Mnemonic for the imaging sign of fluid within an infected sinus.

Head and Neck
Angle of Jaw Dermatome Exception Mnemonic

The angle of the jaw belongs to C2, C3, not the trigeminal at all

Mnemonic for the key exception to trigeminal facial sensation.

Head and Neck
Angular Artery Termination Mnemonic

The facial artery's last stop, at the eye's inner corner, full stop

Mnemonic for the terminal point of the facial artery.

Head and Neck
Ansa Cervicalis Function Mnemonic

A loop of C1 to C3 supplies the strap muscles below the hyoid

Mnemonic for the muscles supplied by the ansa cervicalis loop.

Head and Neck
Anterior Cranial Fossa Contents Mnemonic

Frontal lobes rest, olfactory bulbs nest, on the cribriform's crest

Mnemonic for the main contents of the anterior cranial fossa.

Head and Neck
Anterior Triangle Subdivisions Mnemonic

Some Men Cheat Downwards

Mnemonic for the four subdivisions of the anterior triangle of the neck.

Head and Neck
Atlanto-occipital Versus Atlantoaxial Movement Mnemonic

Atlas nods yes, axis says no

Mnemonic for the different movements permitted at the top two cervical joints.

Head and Neck
Atlas and Axis Distinguishing Features Mnemonic

Atlas has no body, axis has the peg

Mnemonic for the distinguishing features of the first two cervical vertebrae.

Head and Neck
Auriculotemporal Nerve Relation to the Middle Meningeal Artery Mnemonic

Wraps around the middle meningeal artery like a sling

Mnemonic for the looping relationship between the auriculotemporal nerve and the middle meningeal artery.

Head and Neck
Battle's Sign for Base of Skull Fracture Mnemonic

Bruising behind the ear, base of skull fracture's here

Mnemonic for the clinical sign and significance of Battle's sign.

Head and NeckTrauma
Bell's Palsy Versus Stroke Forehead Sparing Mnemonic

Bell's drops it all, stroke spares the wall

Mnemonic for distinguishing a lower motor neuron facial palsy from an upper motor neuron lesion.

Head and Neck
Bitter Taste Receptor Distribution Mnemonic

Bitter lingers at the back, a built-in poison-detecting tack

Mnemonic for the relative concentration of bitter taste receptors on the tongue.

Head and Neck
Buccinator Function During Chewing Mnemonic

The trumpeter's cheek, keeps the food where you chew, doesn't let it leak

Mnemonic for the role of buccinator in mastication.

Head and Neck
Carotid Bifurcation Vertebral Level Mnemonic

Carotid splits at C3 to C4, right where the hyoid bone lives

Mnemonic for the vertebral level of the carotid artery bifurcation.

Head and Neck
Carotid Canal Contents Mnemonic

The tunnel the artery takes, no nerve for company's sake

Mnemonic for the sole major content of the carotid canal.

Head and Neck
Carotid Pulse Palpation Landmark Mnemonic

Feel the angle of the jaw, just in front of the SCM's wall

Mnemonic for where to feel the carotid pulse.

Head and Neck
Carotid Sheath Contents Mnemonic

Very Important Vessels Nearby

Mnemonic for the structures contained within the carotid sheath.

Head and Neck
Cavernous Sinus Contents Mnemonic

Oh Oh Oh To Take A Vacation

Mnemonic for the structures within and beside the cavernous sinus.

Head and Neck
Cavernous Sinus Thrombosis Signs Mnemonic

Painful eye that won't move right, three four six caught in the fight

Mnemonic for the clinical features of cavernous sinus thrombosis.

Head and Neck
Cervical Lymph Node Levels Mnemonic

Submental to supraclavicular, level one to level six

Mnemonic for the six levels of cervical lymph nodes.

Head and Neck
Cervical Plexus Cutaneous Branches Mnemonic

Great auricular, lesser occipital, supraclavicular, transverse cervical, GLST meet at Erb's point

Mnemonic for the four cutaneous branches of the cervical plexus.

Head and Neck
Cervical Plexus Root Value Mnemonic

C1 to C4 weave the neck's own web

Mnemonic for the spinal root contributions to the cervical plexus.

Head and Neck
Cervical Sympathetic Chain Ganglia Mnemonic

Superior Middle Inferior, three ganglia in a row

Mnemonic for the three ganglia of the cervical sympathetic trunk.

Head and Neck
Cervical Vertebrae Versus Cervical Nerve Count Mnemonic

Seven bones, eight nerves, C1 exits above its bone, the rest just follow

Mnemonic for why there are eight cervical nerves but only seven cervical vertebrae.

Head and Neck
Chorda Tympani Route Through the Middle Ear Mnemonic

Sneaks through the middle ear, but doesn't supply it, just passing through

Mnemonic for the passage of the chorda tympani through the middle ear without supplying it.

Head and Neck
Chvostek's Sign for Hypocalcaemia Mnemonic

Tap the cheek, twitch you'll see, low calcium's the guarantee

Mnemonic for eliciting and interpreting Chvostek's sign.

Head and Neck
Ciliary Ganglion Root Mnemonic

Short root, sharp focus

Mnemonic for the parasympathetic root of the ciliary ganglion.

Head and Neck
Circle of Willis Order Mnemonic

Anterior communicates before posterior

Mnemonic for the anterior to posterior arrangement of the circle of Willis.

Head and Neck
Cleft Lip Laterality Pattern Mnemonic

Usually strikes on the left, left is more often bereft

Mnemonic for the typical side affected in cleft lip.

Head and Neck
Cleft Lip Versus Cleft Palate Timing Mnemonic

Lip by six, palate by twelve

Mnemonic for the developmental timing of lip and palate closure.

Head and Neck
Cochlea Versus Vestibule Function Mnemonic

Cochlea for hearing, vestibule for the leaning

Mnemonic for the separate functions of the cochlea and vestibular apparatus.

Head and Neck
Corneal Reflex Pathway Mnemonic

Touch with five, blink with seven

Mnemonic for the afferent and efferent nerves of the corneal reflex.

Head and Neck
Corrugator Supercilii Frown Line Mnemonic

Corrugator draws the brows together, a furrowed frown in any weather

Mnemonic for the frowning action of corrugator supercilii.

Head and Neck
Cranial Nerve I Bedside Test Mnemonic

Sniff for one, smell tells if the first is gone

Mnemonic for testing the olfactory nerve at the bedside.

Head and Neck
Cranial Nerve II Bedside Test Mnemonic

See for two, visual acuity and fields come through

Mnemonic for testing the optic nerve at the bedside.

Head and Neck
Cranial Nerve Nuclei by Brainstem Level Mnemonic

Three and four live up top, five six seven eight bunk together in the pons, nine through twelve settle low

Mnemonic for which cranial nerve nuclei sit at each brainstem level.

Head and Neck
Cranial Nerve Order I to XII Mnemonic

Oh Oh Oh To Touch And Feel Very Green Vegetables AH

Classic mnemonic for the order of the twelve cranial nerves.

Head and Neck
Cranial Nerve Sensory Motor or Both Mnemonic

Some Say Marry Money But My Brother Says Big Brains Matter More

Mnemonic for whether each cranial nerve is sensory, motor or mixed.

Head and Neck
Cranial Nerve V Motor Bedside Test Mnemonic

Clench for five, feel the masseter come alive

Mnemonic for testing the motor function of the trigeminal nerve.

Head and Neck
Cranial Nerve VII Bedside Test Mnemonic

Smile, puff, frown for seven, raise your brows up toward heaven

Mnemonic for testing the facial nerve at the bedside.

Head and Neck
Cranial Nerve X Bedside Test Mnemonic

Say ah for ten, watch the uvula pull, then

Mnemonic for testing the vagus nerve at the bedside.

Head and Neck
Cranial Nerve XI Bedside Test Mnemonic

Shrug and turn for eleven, against resistance, push like Kevin

Mnemonic for testing the accessory nerve at the bedside.

Head and Neck
Cranial Nerve XII Bedside Test Mnemonic

Stick out for twelve, tongue points toward the weaker shelf

Mnemonic for testing the hypoglossal nerve at the bedside.

Head and Neck
Cranial nerves clean mnemonic Mnemonic

Oh Once One Takes The Anatomy Final, Very Good Vacations Are Heavenly

A clean mnemonic for the order of the twelve cranial nerves.

Head and Neck
Cricoarytenoid Joint Movement Type Mnemonic

Rotates and slides like a knob on a dial, opens and closes the cords all the while

Mnemonic for the type of movement at the cricoarytenoid joint.

Head and Neck
Cricoid Cartilage Vertebral Level Mnemonic

Cricoid sits at C6, where the airway becomes the trachea and the oesophagus truly begins

Mnemonic for the vertebral level of the cricoid cartilage.

Head and Neck
Cricothyroid Joint Movement Type Mnemonic

Tilts and rocks like a see-saw plank, tenses the cords as it cranks

Mnemonic for the type of movement at the cricothyroid joint.

Head and Neck
Cricothyroid Membrane Location Mnemonic

Between the shield and the ring

Mnemonic for the location of the cricothyroid membrane.

Head and Neck
Cricothyroidotomy Landmark Mnemonic

Feel the notch between shield and ring, that's the emergency door

Mnemonic for the emergency airway landmark of the cricothyroid membrane.

Head and NeckAirway and Breathing Emergencies
CSF Rhinorrhoea Halo Test Mnemonic

A halo ring on gauze or sheet, CSF mixed with blood, a telltale feat

Mnemonic for testing suspected cerebrospinal fluid leak from the nose.

Head and NeckBody Fluids and Urinalysis
Danger Triangle of the Face Mnemonic

Nose to the mouth's two corners, no valves, straight line to the cavernous sinus

Mnemonic for the danger triangle formed by the nose and corners of the mouth.

Head and Neck
Deciduous Tooth Eruption Span Mnemonic

Central first to bite, second molar ends the fight

Mnemonic for the approximate timing of deciduous tooth eruption.

Head and Neck
Deep Cervical Fascia Layers Mnemonic

Investing, Pretracheal, Prevertebral, three coats around the neck

Mnemonic for the three main layers of deep cervical fascia.

Head and Neck
Digastric Muscle Bellies and Nerve Supply Mnemonic

Two bellies, one tendon sling, anterior chews forward, posterior pulls back

Mnemonic for the two bellies of digastric and their different nerve supplies.

Head and Neck
Digastric Nerve Supply Split by Belly Mnemonic

Anterior belly's fed by five, posterior by seven, one muscle, two masters driven

Mnemonic for the differing nerve supply of the two digastric bellies.

Head and Neck
DiGeorge Syndrome Features Mnemonic

CATCH-22

Mnemonic for the clinical features of DiGeorge syndrome linked to pharyngeal pouch failure.

Head and Neck
Dilator Naris Function Mnemonic

Dilator naris widens the door when you need more air to pour

Mnemonic for the action of dilator naris during breathing.

Head and Neck
Dural Venous Sinus Drainage Path Mnemonic

Sally Sees Cats Turn Sideways, Jumping

Mnemonic for the pathway of venous drainage through the major dural sinuses.

Head and Neck
Eight Cranial Bones Mnemonic

Old People From Texas Eat Spiders Sometimes

Mnemonic for the eight bones that form the cranial vault and base.

Head and Neck
Emissary Vein Function Mnemonic

Little bridges connect scalp veins to sinus deep, infection's secret sneak

Mnemonic for the role of emissary veins in the scalp.

Head and Neck
Epidural Versus Subdural Haemorrhage Shape Mnemonic

Epidural is a lens, subdural is a banana

Mnemonic for the imaging shapes of epidural and subdural bleeds.

Head and NeckTrauma
Epiglottis Cartilage Type Mnemonic

Elastic, so it springs back into place, epiglottis bounces, doesn't lose face

Mnemonic for the elastic cartilage composition of the epiglottis.

Head and Neck
Erb's Point and Cutaneous Nerves Mnemonic

Great auricular, lesser occipital, transverse cervical, supraclavicular, four nerves burst at the border

Mnemonic for the four cutaneous nerves emerging at Erb's point.

Head and Neck
Eustachian Tube Function Mnemonic

Opens to equalise, pops when you fly, blocks and your ear says goodbye

Mnemonic for the role of the eustachian tube.

Head and Neck
External Carotid Artery Branches Mnemonic

Some Ladies Find Occlusion Painful, So They Make Out

Mnemonic for the eight branches of the external carotid artery.

Head and Neck
External Ear Cartilage Landmarks Mnemonic

Helix wraps the whole way round, down to the lobe it's found

Mnemonic for the main visible landmarks of the auricle from outer rim to canal.

Head and Neck
External Ear Hillock Development Mnemonic

Six hillocks of His fuse to build the outer ear's rise

Mnemonic for the embryological origin of the external ear.

Head and Neck
External Jugular Vein Origin Mnemonic

Posterior auricular meets the back door of the retromandibular, external jugular is born

Mnemonic for the formation of the external jugular vein.

Head and Neck
External Laryngeal Nerve Surgical Risk Mnemonic

Ties close to the superior thyroid vessels, injure it, lose your high notes

Mnemonic for the surgical risk to the external branch of the superior laryngeal nerve.

Head and Neck
Extraocular Muscle Common Origin Mnemonic

Four recti spring from a common ring, the obliques do their own thing

Mnemonic for the shared origin of most extraocular muscles.

Head and Neck
Extraocular Muscle Innervation Mnemonic

LR6 SO4 rest 3

Mnemonic for which cranial nerves supply the extraocular muscles.

Head and Neck
Extraocular Muscle Nerve Summary Mnemonic

Lateral rectus six, superior oblique four, everyone else reports to three

Mnemonic combining lateral rectus, superior oblique and the rest of the extraocular muscles by nerve.

Head and Neck
Extraocular Muscle Total Count Mnemonic

Six steer the eye, plus one lifts the lid, seven total, that's the bid

Mnemonic for the total number of extraocular muscles including the eyelid elevator.

Head and Neck
Eyelid Layers Front to Back Mnemonic

Skin Meets The Curtain

Mnemonic for the four layers of the eyelid from skin to conjunctiva.

Head and Neck
Eyelid Opener Versus Closer Mnemonic

Levator lifts, orbicularis shuts

Mnemonic for the antagonist muscles that open and close the eyelid.

Head and Neck
Facial Artery Course Mnemonic

Climbs from the jaw, past the mouth's corner, up beside the nose, a winding road that shows

Mnemonic for the winding course of the facial artery.

Head and Neck
Facial Artery Pulse Points Mnemonic

Feel it at the jaw's angle and beside the nose, the facial artery's winding road

Mnemonic for the two places the facial artery pulse can be felt.

Head and Neck
Facial Dermatome Division by Trigeminal Branch Mnemonic

V1 V2 V3 divide the face like slices of pie, forehead to chin

Mnemonic for how the trigeminal divisions split facial sensation.

Head and Neck
Facial Nerve Branches Mnemonic

Two Zebras Bit My Coccyx

Mnemonic for the five terminal branches of the facial nerve within the parotid gland.

Head and Neck
Facial Nerve Segments Through the Temporal Bone Mnemonic

Labyrinthine, tympanic, mastoid, three segments bend like a Z through the ear

Mnemonic for the three named segments of the facial nerve within the temporal bone.

Head and Neck
Facial Vein Valveless Risk Mnemonic

No valves means no one way street, infection can travel any way it please

Mnemonic for the danger posed by the valveless facial vein.

Head and Neck
First Branchial Cleft Cyst Location Mnemonic

Near the ear, close to the parotid, a leftover groove, that's the plot to it

Mnemonic for the typical location of a first branchial cleft cyst.

Head and Neck
Floor of Mouth Muscle Sling Mnemonic

Mylohyoid makes the sling, geniohyoid sits above the string

Mnemonic for the two muscles forming the floor of the mouth.

Head and Neck
Fontanelle Positions and Closure Mnemonic

Big Diamond Front, Small Triangle Back

Mnemonic for the four fontanelles of the infant skull.

Head and Neck
Foramen Lacerum Contents Mnemonic

Lacerum looks big but it's mostly filled, nothing much really gets through

Mnemonic for the largely cartilage filled foramen lacerum.

Head and Neck
Foramen Magnum Contents Mnemonic

The big hole carries the big stuff

Mnemonic for the major structures passing through the foramen magnum.

Head and Neck
Foramen Ovale Contents Mnemonic

OVAL door for the big jaw nerve

Mnemonic for the nerve passing through the foramen ovale.

Head and Neck
Foramen Rotundum Contents Mnemonic

ROUND hole, round cheek nerve

Mnemonic for the nerve passing through the foramen rotundum.

Head and Neck
Foramen Spinosum Contents Mnemonic

Spiny needle brings the blood in

Mnemonic for the vessel passing through the foramen spinosum.

Head and Neck
Four Parasympathetic Ganglia of the Head Mnemonic

Ciliary sees, pterygopalatine cries, otic chews, submandibular drools

Mnemonic for the four parasympathetic ganglia of the head and their linked cranial nerves.

Head and Neck
Fourteen Facial Bones Mnemonic

Two Zygomatic Nasal Every Maxilla Loves Vomer, In Public

Mnemonic for the fourteen bones of the facial skeleton.

Head and Neck
Frey's Syndrome Mechanism Mnemonic

Sweat while you eat, parotid surgery crosses gustatory and sweat nerve fibres

Mnemonic for the mechanism behind Frey's syndrome after parotid surgery.

Head and Neck
Frontalis Muscle Attachment Mnemonic

Frontalis raises the brow in surprise, no bone beneath it, just skin that flies

Mnemonic for the unique bone-free attachment of frontalis.

Head and Neck
Gag Reflex Pathway Mnemonic

Nine tastes it, ten gags it

Mnemonic for the afferent and efferent nerves of the gag reflex.

Head and Neck
Great Auricular Nerve Territory Mnemonic

Great auricular covers the ear and the angle of the jaw

Mnemonic for the sensory territory of the great auricular nerve.

Head and Neck
Great Vessel Origin Side Difference in the Neck Mnemonic

Right shares a trunk, left stands alone, straight off the arch it's grown

Mnemonic for the asymmetric origin of the subclavian arteries relevant to neck vessel anatomy.

Head and Neck
Greater Petrosal Nerve Destination Mnemonic

The first branch off the facial, headed for the crying ganglion

Mnemonic for the destination of the greater petrosal nerve.

Head and Neck
H-Test Eye Movement Pattern Mnemonic

Trace a big H in the air, that's how all six muscles show their care

Mnemonic for the shape traced when testing all six extraocular muscles.

Head and Neck
H-Zone of the Face Danger Mnemonic

Nose to lip to eye, an H shaped tie, infections here risk the brain nearby

Mnemonic for the danger zone of facial infection spread.

Head and Neck
Horner's Syndrome Triad Mnemonic

PAM, Ptosis Anhidrosis Miosis

Mnemonic for the three signs of Horner's syndrome.

Head and Neck
Hyoid Bone Uniqueness Mnemonic

The only bone that touches no other bone, floats alone, on muscle sling it's grown

Mnemonic for the unusual isolated position of the hyoid bone.

Head and Neck
Hyoid Bone Vertebral Level Mnemonic

Hyoid sits at C3, feel it just below your chin

Mnemonic for the vertebral level of the hyoid bone.

Head and Neck
Hypoglossal Canal Contents Mnemonic

Twelve has its own private door

Mnemonic for the nerve passing through the hypoglossal canal.

Head and Neck
Hypoglossal Nerve Palsy Sign Mnemonic

Tongue points toward the injured side, like it's pointing out the problem

Mnemonic for the clinical sign of a hypoglossal nerve palsy.

Head and Neck
Infrahyoid Strap Muscles Mnemonic

Some Say Thyroid Often

Mnemonic for the four infrahyoid strap muscles below the hyoid bone.

Head and Neck
Internal Acoustic Meatus Contents Mnemonic

Seven and eight ride together through the internal gate

Mnemonic for the nerves passing through the internal acoustic meatus.

Head and Neck
Internal Carotid Artery Segment Order Mnemonic

Cats Prowl Caves Carefully

Mnemonic for the four main segments of the internal carotid artery.

Head and Neck
Internal Jugular Vein Formation Mnemonic

Sigmoid sinus drops through the jugular foramen and becomes the vein

Mnemonic for the origin of the internal jugular vein.

Head and Neck
Jaw Jerk Reflex Pathway Mnemonic

Five in, five out, the only reflex that's all trigeminal about

Mnemonic for the nerve involved in both limbs of the jaw jerk reflex.

Head and Neck
Jugular Foramen Contents Mnemonic

Jugular Vein Attracts Girls

Mnemonic for the structures passing through the jugular foramen.

Head and Neck
Jugular Foramen Nerve Trio Mnemonic

Nine, Ten, Eleven ride the jugular bus, sitting right next to the vein

Mnemonic for the three nerves riding through the jugular foramen with the internal jugular vein.

Head and Neck
Lacrimal Apparatus Flow Direction Mnemonic

Gland weeps above, punctum sips at the inner corner, sac drains down the duct, nose catches the run

Mnemonic for the direction tears flow through the lacrimal apparatus.

Head and Neck
Laryngeal Cartilage Group Mnemonic

Those Cats Are Eating

Mnemonic for the four main cartilages of the larynx.

Head and Neck
Laryngeal Inlet Boundaries Mnemonic

Front flap, back peaks, side folds seal the leaks

Mnemonic for the structures forming the boundaries of the laryngeal inlet.

Head and Neck
Laryngopharynx Boundaries Mnemonic

From the epiglottis down to the cricoid's ring, food passes safely past the airway's wing

Mnemonic for the boundaries of the laryngopharynx.

Head and Neck
Lateral Pterygoid Protrusion Action Mnemonic

Lateral pterygoids pull it open, working as a pair

Mnemonic for the unique protrusive action of lateral pterygoid.

Head and Neck
Levator Palpebrae Superioris Origin Mnemonic

Lifts from the back of the orbit, a short straight climb to the lid it'll orbit

Mnemonic for the bony origin of levator palpebrae superioris.

Head and Neck
Little's Area and Epistaxis Mnemonic

Five vessels kiss at the front of the septum

Mnemonic for the arteries forming Kiesselbach's plexus at Little's area.

Head and Neck
LR6 SO4 AO3 Mnemonic

Lateral rectus CN VI, superior oblique CN IV, all others CN III

A mnemonic for extraocular muscle innervation.

Head and Neck
Ludwig's Angina Airway Risk Mnemonic

Tongue goes up, airway's stuck

Mnemonic for the key danger of Ludwig's angina.

Head and NeckAirway and Breathing Emergencies
Mandibular Nerve Branches Mnemonic

BLIA runs the lower jaw

Mnemonic for the branches of the mandibular division of the trigeminal nerve.

Head and Neck
Mandibular Nerve Exit Point Mnemonic

Three goes oval, the big jaw needs the big oval door

Mnemonic for where the mandibular nerve leaves the skull.

Head and Neck
Mastoiditis Spread Route Mnemonic

Infection spreads through the mastoid air cells straight to the brain's back door

Mnemonic for how mastoiditis can spread to threaten the brain.

Head and Neck
Maxillary Nerve Branches Mnemonic

ZIPS across the midface

Mnemonic for the branches of the maxillary division of the trigeminal nerve.

Head and Neck
Maxillary Nerve Exit Point Mnemonic

Two goes round, matches its round cheek

Mnemonic for where the maxillary nerve leaves the skull.

Head and Neck
Meckel's Cave Contents Mnemonic

Trigeminal ganglion rests in Meckel's cave, like a nerve tucked safe

Mnemonic for the structure housed within Meckel's cave.

Head and Neck
Meningeal Layers Outside to Inside Mnemonic

Dumb Aunts Party

Mnemonic for the three meningeal layers from outermost to innermost.

Head and Neck
Mentalis Muscle Chin Action Mnemonic

Mentalis wrinkles the chin like a golf ball skin

Mnemonic for the wrinkling action of mentalis on the chin.

Head and Neck
Metopic Suture Early Fusion Mnemonic

The forgotten suture, fuses early, by age two it's gone from view

Mnemonic for the early disappearance of the metopic suture.

Head and Neck
Middle Cranial Fossa Contents Mnemonic

Temporal and pituitary's nest, cavernous sinus at the side of the crest

Mnemonic for the main contents of the middle cranial fossa.

Head and Neck
Middle Ear Cavity Walls Mnemonic

Roof Floor Front Back In Out, six walls about

Mnemonic for the six walls of the tympanic cavity.

Head and Neck
Motor Versus Sensory Nuclei Position Mnemonic

Motor nuclei sit medial, sensory nuclei sit lateral

Mnemonic for the general rule on brainstem nuclei position.

Head and Neck
Muscles of Mastication Count Mnemonic

Some Muscles Make You Munch

Mnemonic for the number and identity of the muscles of mastication.

Head and Neck
Muscles of Mastication That Close the Jaw Mnemonic

My Try Might Ache

Mnemonic for the three muscles of mastication that elevate the mandible.

Head and Neck
Muscles That Depress and Retract the Mandible Mnemonic

Temporalis pulls it back, gravity does the rest of the opening act

Mnemonic for the muscle actions opposing lateral pterygoid protrusion.

Head and Neck
Nasal Cavity Arterial Supply Summary Mnemonic

A five way kiss at Kiesselbach's

Mnemonic for the five arteries contributing to Kiesselbach's plexus.

Head and Neck
Nasal Septum Building Blocks Mnemonic

Plate on top, Vomer below, Cartilage in front

Mnemonic for the three structures forming the nasal septum.

Head and Neck
Nasalis Muscle Action Mnemonic

Nasalis flares the nostrils wide, compressor and dilator riding side by side

Mnemonic for the flaring action of nasalis.

Head and Neck
Nasopharynx Boundaries Mnemonic

Behind the nose, above the palate, a passage that connects but does not halt it

Mnemonic for the boundaries of the nasopharynx.

Head and Neck
Ophthalmic Nerve Branches Mnemonic

Frankly Lovely Nose

Mnemonic for the three branches of the ophthalmic division of the trigeminal nerve.

Head and Neck
Ophthalmic Nerve Exit Point Mnemonic

One goes through the superior orbital fissure, the eye's own door

Mnemonic for where the ophthalmic nerve leaves the skull.

Head and Neck
Optic Canal Contents Mnemonic

Two travels with the artery too

Mnemonic for the structures passing through the optic canal.

Head and Neck
Orbicularis Oculi Ring Closure Mnemonic

Orbit the eye, orbicularis closes it, one ring muscle, one job, shut

Mnemonic for the ring shaped closing action of orbicularis oculi.

Head and Neck
Orbicularis Oris Purse String Action Mnemonic

Orbicularis oris puckers shut, like a drawstring purse pulled tight

Mnemonic for the sphincter action of orbicularis oris.

Head and Neck
Orbit Apex Structures Mnemonic

Optic canal medial, superior orbital fissure lateral, the apex splits the traffic

Mnemonic for the structures at the apex of the orbit and how the two openings split them.

Head and Neck
Orbit Wall Names Mnemonic

Room For Little Miracles

Mnemonic for the four walls of the bony orbit.

Head and Neck
Orbitomeatal Baseline for Skull CT Mnemonic

Eye to ear hole, the baseline for a skull CT's role

Mnemonic for the orbitomeatal line used as a baseline in skull imaging.

Head and Neck
Oropharynx Boundaries Mnemonic

From the soft palate down to the hyoid's frame, tonsils and tongue base share this same domain

Mnemonic for the boundaries of the oropharynx.

Head and Neck
Ossicle Order and Sound Path Mnemonic

Ma Married Ivan Stapel

Mnemonic reinforcing the ossicle order along the path of sound conduction.

Head and Neck
Ossicles of the Middle Ear Mnemonic

Ma Married Ivan Stapel

Mnemonic for the order of the three ossicles from outer to inner ear.

Head and Neck
Otic Ganglion Location Mnemonic

Hangs under the oval door

Mnemonic for the position of the otic ganglion.

Head and Neck
Palate Division by Tissue Type Mnemonic

Hard in front is bone, soft behind stands alone

Mnemonic for the composition of the hard and soft palate.

Head and Neck
Palate Fusion Sequence Mnemonic

Palatine shelves swing down then up then fuse, miss the timing, get the cleft

Mnemonic for the direction of palatal shelf fusion.

Head and Neck
Paranasal Sinus Drainage Pattern Mnemonic

Middle for most, superior for posterior ethmoid, sphenoid drains above all

Mnemonic for where each paranasal sinus group drains within the nasal cavity.

Head and Neck
Paranasal Sinus Group Mnemonic

Frontal Ethmoid Sphenoid Maxillary, all drain to the nose

Mnemonic for the four paired paranasal sinuses.

Head and Neck
Paranasal Sinus Pair Count Mnemonic

Four pairs drain the face, frontal ethmoid sphenoid maxillary find their place

Mnemonic for the number of paired paranasal sinus groups.

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Parathyroid Gland Number and Position Mnemonic

Four glands, two up two down, tucked behind the thyroid's crown

Mnemonic for the typical number and arrangement of parathyroid glands.

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Parotid Duct Opening Site Mnemonic

Stensen's duct opens by the second upper molar

Mnemonic for the location of the parotid duct opening.

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Parotid Gland Lobe Division Mnemonic

Facial nerve splits it superficial from deep, like a nerve drawn curtain

Mnemonic for how the facial nerve divides the parotid gland into lobes.

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Peritonsillar Abscess Uvula Deviation Mnemonic

Uvula runs away from the pus bay

Mnemonic for the direction of uvula deviation in a peritonsillar abscess.

Head and NeckAirway and Breathing Emergencies
Permanent Tooth Eruption Order Mnemonic

Come Look, Canines First, Please, Please, Molars Meet

Mnemonic for the general order in which permanent teeth erupt.

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Pharyngeal Arch Cartilage Derivatives Mnemonic

Arch one Meckel's begun, arch two Reichert's true, arch three hyoid's key, arch four six larynx fix

Mnemonic for the skeletal derivative of each pharyngeal arch.

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Pharyngeal Arch Four and Six Nerve Mnemonic

Arch four six, Vagus fix

Mnemonic for the nerve of the fourth and sixth pharyngeal arches.

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Pharyngeal Arch One Nerve Mnemonic

Arch one, chew like a Trigeminal son

Mnemonic for the nerve of the first pharyngeal arch.

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Pharyngeal Arch Three Nerve Mnemonic

Arch three, swallow with Glosso key

Mnemonic for the nerve of the third pharyngeal arch.

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Pharyngeal Arch Two Nerve Mnemonic

Arch two, smile like a Facial crew

Mnemonic for the nerve of the second pharyngeal arch.

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Pharyngeal Constrictor Order Mnemonic

Sing Movies Play Backwards

Mnemonic for the three pharyngeal constrictor muscles from top to bottom.

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Pharyngeal Pouch Fates Mnemonic

Ear, tonsil, thymus below, thymus above

Mnemonic for the adult derivative of each of the four pharyngeal pouches.

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Pharyngeal Wall Layer Order Mnemonic

My Friend Made Adjustments

Mnemonic for the four layers of the pharyngeal wall from inside out.

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Pharyngobasilar Fascia Function Mnemonic

The tough inner coat that holds the throat's shape afloat

Mnemonic for the supportive role of the pharyngobasilar fascia.

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Phases of Swallowing Mnemonic

Once Party Ends

Mnemonic for the three phases of swallowing in order.

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Piriform Fossa Clinical Relevance Mnemonic

A pocket beside the larynx, where sharp things like to hide and pinch

Mnemonic for why the piriform fossa is a common site for foreign bodies.

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Platysma Muscle Direction and Action Mnemonic

Runs from the chest to the jaw, tenses the neck like a drawn up shawl

Mnemonic for the course and action of platysma.

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Posterior Cranial Fossa Contents Mnemonic

Cerebellum and stem, the deepest of them

Mnemonic for the main contents of the posterior cranial fossa.

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Posterior Cricoarytenoid Action Mnemonic

PCA parts the cords apart

Mnemonic for the unique action of posterior cricoarytenoid.

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Posterior Triangle Boundaries Mnemonic

SCM in front, trapezius behind, clavicle's the floor you'll find

Mnemonic for the three boundaries of the posterior triangle of the neck.

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Posterior Triangle Contents Mnemonic

Accessory surfs, plexus peeks, artery anchors

Mnemonic for the main contents of the posterior triangle of the neck.

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Preauricular Node Drainage Mnemonic

Preauricular nodes catch drainage from the eyelid and temple first

Mnemonic for the drainage territory of the preauricular lymph nodes.

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Pterion Danger Mnemonic

Thin as paper, tear beneath, that's the pterion's deadly teeth

Mnemonic for why the pterion is a clinically dangerous landmark.

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Pterion Location Mnemonic

Frontal Parietal Temporal Sphenoid meet at an H shaped handshake

Mnemonic for the four bones meeting at the pterion.

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Pterygopalatine Ganglion Location Mnemonic

The crying ganglion hangs from the maxillary nerve

Mnemonic for the position and function of the pterygopalatine ganglion.

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Pupillary Light Reflex Pathway Mnemonic

In by two, out by three

Mnemonic for the afferent and efferent nerves of the pupillary light reflex.

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Pyramidal Lobe of the Thyroid Mnemonic

A leftover thumb pointing up from the thyroglossal duct's path

Mnemonic for the origin of the thyroid pyramidal lobe.

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Raccoon Eyes Sign for Anterior Fossa Fracture Mnemonic

Black eyes with no punch thrown, anterior fossa fracture shown

Mnemonic for the clinical sign and significance of raccoon eyes.

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Recurrent Laryngeal Nerve and Thyroid Surgery Risk Mnemonic

The nerve runs behind the gland, cut carelessly, lose the voice command

Mnemonic for the surgical risk to the recurrent laryngeal nerve during thyroidectomy.

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Recurrent Laryngeal Nerve Course Mnemonic

Right hooks the pipe, left loops the arch, right's the short cut, left's the long march

Mnemonic for the asymmetric course of the left and right recurrent laryngeal nerves.

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Recurrent Laryngeal Nerve Motor Territory Mnemonic

Recurrent runs the rest, every intrinsic muscle except the one that's blessed by external

Mnemonic for the muscles supplied by the recurrent laryngeal nerve.

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Reid's Baseline for Skull Imaging Mnemonic

A line from the eye to the ear, the skull's horizontal frontier

Mnemonic for the anatomical landmark used as the baseline in skull imaging.

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Retropharyngeal Space Danger Mnemonic

Danger space, no floor at all, straight down to the chest you fall

Mnemonic for why the retropharyngeal space is called the danger space.

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Rima Glottidis Width Changes Mnemonic

Wide to breathe, narrow to whisper, a silent gap grows slimmer

Mnemonic for how the width of the rima glottidis changes with breathing and speech.

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Rinne and Weber Test Logic Mnemonic

Rinne negative, bone beats air, conductive loss is there, Weber runs to the bad ear when it's conductive

Mnemonic for interpreting Rinne and Weber hearing tests.

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Risorius Smiling Action Mnemonic

The smiler's muscle, risorius rhymes with glorious grin

Mnemonic for the smiling function of risorius.

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Sagittal Suture Surface Landmark Mnemonic

Runs straight down the middle like a part in your hair

Mnemonic for the surface position of the sagittal suture.

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Scalp Layers Front to Back Mnemonic

SCALP

Mnemonic for the five layers of the scalp.

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Second Branchial Cleft Cyst Location Mnemonic

Along the SCM's front edge, second cleft hugs the muscle's ledge

Mnemonic for the typical location of a second branchial cleft cyst.

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Semicircular Canal Plane Arrangement Mnemonic

Three canals, three planes, anterior posterior lateral, each at right angles

Mnemonic for the three planes of the semicircular canals.

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Skull Suture Order Mnemonic

Cats Purr Slowly

Mnemonic for the order of major skull sutures from front to back.

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Soft Palate Muscles Mnemonic

Tall Ladies Prefer Pretty Umbrellas

Mnemonic for the five muscles of the soft palate.

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Some Say Marry Money Mnemonic

Sensory, Sensory, Motor, Motor, Both, Motor, Both, Sensory, Both, Both, Motor, Motor

A mnemonic for sensory, motor or both functions of cranial nerves.

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Sound Conduction Pathway Summary Mnemonic

Pinna funnels, drum vibrates, ossicles amplify, cochlea converts

Mnemonic for the overall journey of sound from outer ear to inner ear.

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Sphenoid Sinus Neighbour Danger Mnemonic

Sits beneath the pituitary gland, a neighbour you don't want too grand

Mnemonic for the risky proximity of the sphenoid sinus to the pituitary gland.

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Splenius Muscle Actions Mnemonic

Splenius extends and rotates the head like a splint holding it straight

Mnemonic for the actions of splenius capitis and cervicis.

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Sternocleidomastoid Actions Mnemonic

Same Side Tilt, Opposite Side Turn

Mnemonic for the tilt and turn actions of sternocleidomastoid.

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Structures Passing Through the Parotid Gland Mnemonic

Some Anatomists Vow Never Forget

Mnemonic for the order of structures within the parotid gland from superficial to deep.

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Stylomastoid Foramen Mnemonic

Between the style and the mastoid, the face makes its exit

Mnemonic for the nerve exiting the stylomastoid foramen.

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Subclavian Artery Branch Order Mnemonic

VIT-C, D

Mnemonic for the branches of the subclavian artery.

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Sublingual Gland Duct Pattern Mnemonic

Many little ducts, no single big door

Mnemonic for the multiple small ducts of the sublingual gland.

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Submandibular Duct Opening Site Mnemonic

Wharton's duct opens at the front floor, beside the tongue's tied door

Mnemonic for the location of the submandibular duct opening.

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Submandibular Ganglion Location Mnemonic

Hangs from the lingual nerve like a drop of drool

Mnemonic for the position of the submandibular ganglion.

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Superficial Temporal Artery Landmark Mnemonic

Feel it just in front of the ear, the temple's pulse is always near

Mnemonic for the location of the superficial temporal artery pulse.

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Superior and Inferior Oblique Actions Mnemonic

SIN and RAD

Mnemonic for the combined actions of the oblique eye muscles.

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Superior Laryngeal Nerve Two Branches Mnemonic

Internal feels, external tightens, two branches with two different heightenings

Mnemonic for the two branches of the superior laryngeal nerve.

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Superior Orbital Fissure Contents Mnemonic

Live Free To See Anything

Mnemonic for the nerves passing through the superior orbital fissure.

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Supraclavicular Node and Troisier's Sign Mnemonic

Troisier finds trouble on the left, above the collarbone's cleft

Mnemonic reinforcing the clinical importance of the left supraclavicular lymph node.

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Suprahyoid Muscles Mnemonic

Some Guys Marry, Divorce, Get Married

Mnemonic for the four suprahyoid muscles above the hyoid bone.

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Suture Closure Timing Order Mnemonic

Post is quick, ant takes its time

Mnemonic for the relative closure timing of the fontanelles.

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Taste Map Myth Buster Mnemonic

Sweet salty sour bitter, all buds sense them all, no zone is stricter

Mnemonic for correcting the outdated tongue taste map idea.

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Taste Versus General Sensation of the Tongue Mnemonic

Front Chorda, Back Glosso

Mnemonic for which nerves carry taste and touch from the anterior and posterior tongue.

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Third Nerve Palsy Triad Mnemonic

Down and out, lid's dropping, pupil's blown

Mnemonic for the classic clinical triad of a complete CN III palsy.

Head and NeckNeurological Emergencies
Three Salivary Glands Mnemonic

Peter Piper's Salty Snacks

Mnemonic for the three paired major salivary glands.

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Thyrocervical Trunk Branches Mnemonic

Try Swallowing Slowly

Mnemonic for the branches of the thyrocervical trunk.

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Thyroglossal Duct Path Mnemonic

From the tongue's back door down to its final address, cysts can pop up anywhere on the way

Mnemonic for the developmental path of the thyroglossal duct.

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Thyroid Cartilage Shield Shape Mnemonic

Shield shaped, guards the throat like ancient armour plate

Mnemonic for the protective shield-like shape of the thyroid cartilage.

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Thyroid Cartilage Vertebral Level Mnemonic

Thyroid cartilage marks C4 to C5, the Adam's apple's home address

Mnemonic for the vertebral level of the thyroid cartilage.

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Thyroid Gland Blood Supply Direction Mnemonic

Superior comes from above, inferior climbs from below

Mnemonic for the origin of the arteries supplying the thyroid gland.

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Thyroid Isthmus Vertebral Level Mnemonic

Two three the isthmus you see, right below the cricoid at C6

Mnemonic for the vertebral level of the thyroid isthmus.

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TMJ Disc Position Mnemonic

Disc rides on top of the condyle like a saddle, dividing the joint in two

Mnemonic for the position of the articular disc within the TMJ.

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TMJ Ligament Group Mnemonic

TSS holds the jaw on a leash

Mnemonic for the three ligaments supporting the temporomandibular joint.

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TMJ Opening Movement Sequence Mnemonic

Rotation opens a little, translation opens a lot, hinge then glide, that's the plot

Mnemonic for the two stage movement of jaw opening at the TMJ.

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Tongue Development Origins by Region Mnemonic

Anterior two thirds from arch one, posterior third from arch three, different origins, same organ, that's why the nerves differ too

Mnemonic for the pharyngeal arch origin of the anterior and posterior tongue.

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Tongue Extrinsic Muscles Mnemonic

Style Helps Genius Pals

Mnemonic for the four extrinsic muscles of the tongue.

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Tongue Lymphatic Drainage Pattern Mnemonic

Tip and back drain both sides, the sides only drain their own side

Mnemonic for the bilateral versus unilateral lymphatic drainage of the tongue.

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Total Skull Bone Count Mnemonic

Twenty two bones build the skull's house, eight cranial, fourteen facial, quiet as a mouse

Mnemonic for the total number of bones in the skull.

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Towne's View for Skull Imaging Mnemonic

Towne's looks through the foramen magnum, straight down the pipe

Mnemonic for the purpose and technique of the Towne's radiographic view.

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Tracheostomy Site Landmark Mnemonic

Between rings two and three, below the cricoid, that's the key

Mnemonic for the correct level of a surgical tracheostomy.

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Trapezius Three Part Action Mnemonic

Upper shrugs, middle retracts, lower depresses

Mnemonic for the three functional parts of trapezius.

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Treacher Collins Syndrome and Arch One Mnemonic

Arch one's a mess, jaw and ear both regress

Mnemonic for the developmental basis of Treacher Collins syndrome.

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Trigeminal Nerve Three Divisions Mnemonic

Standing Room Only

Mnemonic for the order of the three divisions of the trigeminal nerve.

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Trousseau's Sign for Hypocalcaemia Mnemonic

Cuff the arm, the hand spasms like a claw, another calcium low flaw

Mnemonic for eliciting and interpreting Trousseau's sign.

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Vernet Syndrome Nerve Trio Mnemonic

Voice breaks, swallowing's a task, shoulder droops, nine ten eleven unmasked

Mnemonic for the clinical presentation of jugular foramen syndrome.

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Vertebral Artery Entry Level Mnemonic

Vertebral artery enters at C6, and climbs the transverse foramina all the way up

Mnemonic for the vertebral level at which the vertebral artery enters the transverse foramina.

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Vertebral Artery Segments Mnemonic

V1 rises, V2 hides, V3 loops, V4 dives

Mnemonic for the four segments of the vertebral artery.

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Virchow's Node Clinical Significance Mnemonic

Left Virchow's node signals trouble below

Mnemonic for the significance of an enlarged left supraclavicular lymph node.

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Vocal Cord Mechanics Summary Mnemonic

PCA opens, everyone else closes, CT tightens, TA loosens the noses of sound

Mnemonic combining abduction and tension control of the vocal cords into one memory aid.

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Vocal Cord Tension Muscles Mnemonic

CT tightens, TA loosens

Mnemonic for which muscles tighten and which loosen the vocal cords.

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Waldeyer's Ring as a Throat Guard Mnemonic

Lingual below, palatine at the sides, tubal by the ears, pharyngeal up high, a ring of guards for the throat

Mnemonic for the protective function and layout of Waldeyer's ring.

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Waldeyer's Ring Components Mnemonic

A ring of guards around the throat

Mnemonic for the four sets of tonsils forming Waldeyer's ring.

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Waters View for Sinus Imaging Mnemonic

Waters shows the sinuses, chin up to clear the base

Mnemonic for the purpose and technique of the Waters radiographic view.

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Wharton's Versus Stensen's Duct Memory Aid Mnemonic

Wharton's is under the tongue's floor, Stensen's by the second molar, remember the door

Mnemonic contrasting the two major salivary duct openings.

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Zygomaticus Major Smile Line Mnemonic

Zygomaticus major pulls up and out, a diagonal smile without a doubt

Mnemonic for the diagonal pull of zygomaticus major during smiling.

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