Vertebral Artery

Question 1

The vertebral artery on which side is typically larger?

Answer 1

L Vertebral Artery

Question 2

What is the gender bias regarding size of the vertebral A?

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

Vertebrobasilar Artery Insufficiency Test

Question 4

Which side artery was tested during the course of the vertebrobasilar artery insufficiency test?

Answer 4

The Ipsilateral A on the side of rotation

Question 5

What are the symptoms of failure of the vertebral A to compensate during the vertebrobasilar artery insufficiency test?

Answer 5

Dizziness
Vertigo
Nausea

Question 6

The vertebral A is typically a branch of which artery?

Answer 6

Subclavian A

Question 7

At what location will the vertebral A form its first compensatory loop?

Answer 7

Atlanto-axial Interspace

Question 8

At what location will the vertebral A form it’s second compensatory loop?

Answer 8

Atlanto-occipital Interspace

Question 9

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

Answer 9

Both C1 and C2

Question 10

What is the purpose of the vertebral A loops between C1 and C2 and Occiput?

Answer 10

The increased length will accommodate the greater rotation at these locations.

Question 11

What A is formed by the union of the R and L vertebral arteries?

Answer 11

The Basilar A