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Flashcards in Vertebral artery Deck (12)
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1
Q

The vertebral artery on which side is typically larger?

A

left vertebral artery

2
Q

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

A

men have larger vertebral arteries than women

3
Q

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

A

the vertebrobasilar artery insufficiency test

4
Q

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

A

the ipsilateral artery on the side of rotation

5
Q

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

A

dizziness, vertigo, nausea are common complaints

6
Q

The vertebral artery is typically a branch of which artery?

A

subclavian artery

7
Q

At what location will the vertebral artery from its first compensatory loop?

A

the atlanto-axial interspace

8
Q

At what location will the vertebral artery from its second compensatory loop?

A

the atlanto-occipital space

9
Q

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

A

both C1 and C2

10
Q

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

A

the increased length will accommodate the greater rotation at these locations

11
Q

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

A

the basilar artery

12
Q

What is the average blood flow within the vertebral artery?

A

about 45ml/min