Expansion
V1 rises, V2 hides, V3 loops, V4 dives
Expansion
- V1 - rises from the subclavian artery to C6
- V2 - hides inside the transverse foramina C6 to C2
- V3 - loops behind the lateral mass of the atlas
- V4 - dives through the dura and joins its pair to form the basilar artery