The vertebral-basilar system supplies the brain-stem, cerebellum and temporal and occipital lobes 2 ().It begins as the vertebral artery, which is the first branch of the subclavian artery.

In a further 9.7 per cent the right vertebral artery is small whereas the left is small in 5.7 per cent of cases. Serious complications may occur if the vertebral artery that supplies the major ...

Cerebral angiogram, Left vertebral artery injection; (Left) AP view; (Right) Lateral view. Note the aneurysm arising from the vertebral artery at the origin of the posterior inferior cerebellar artery ...

Cerebral angiogram, Left vertebral artery injection; (Left) AP view; (Right) Lateral view. Note the aneurysm arising from the left superior cerebellar artery. This aneurysm was subsequently ...