Vertebral Artery

Question 1

The vertebral artery on which side is typically larger

Answer 1

Left vertebral artery

Question 2

What is the gender bias regarding size of the vertebral artery

Answer 2

men have larger vertebral arteries than women

Question 3

What was the name of the physical exam used to determine vertebral artery patency

Answer 3

the vertebrobasilar artery insufficiency test

Question 4

Which side artery was tested during the course of the vertebrobasilar artery insufficiency exam

Answer 4

the ipsilateral artery on the side of rotation

Question 5

What are the symptoms of failure of the vertebral artery to compensate during vertebrobasilar artery insufficiency exam

Answer 5

dizziness, vertigo, nausea are common complaints

Question 6

the vertebral artery is typically a branch of which artery

Answer 6

subclavian artery

Question 7

At what location will the vertebral artery form its first compensatory loop

Answer 7

atlato-axial interspace

Question 8

At which location will the vertebral artery form its second compensatory loop

Answer 8

the atlanto-occipital interspace

Question 9

At what segments will the vertebral artery be firmly attached to the transverse foramen

Answer 9

both C1 and C2

Question 10

What is the purpose of the vertebral artery loops between C1, C2, and the occiput

Answer 10

the increased length will accommodate the greater rotation at these locations

Question 11

What happens to the vertebral artery after it enters the subarachnoid space at C1

Answer 11

the vertebral artery ascends along the medulla oblongata to the pontine-medullary junction where the right and left arteries unite to form the basilar artery

Question 12

What artery is formed by the union of the right and left vertebral arteries

Answer 12

basilar artery