Cervical Region-Vertebral Artery Flashcards

1
Q

The vertebral artery on which sideis typically larger?

A

left vertebral artery

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2
Q

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

A

men have larger vertebral arteries than women

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3
Q

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

A

the vertebrobasilar artery insufficiency test

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4
Q

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

A

the ipsilateral artery on the side of rotation

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5
Q

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

A

dizziness, vertigo, nausea are common complaints

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6
Q

The vertebral artery is typiclly a branch of which artery?

A

subclavian artery

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7
Q

Typically, at what vertebral level will the vertebral artery first become locatedin the transverse foramen?

A

C6

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8
Q

At what location will the vetebral artery form its first compensatory loop?

A

the atlanto-axial interspace

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9
Q

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

A

the atlanto-occipital interspace

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10
Q

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

A

both C1 and C2

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11
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

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12
Q

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

A

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

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13
Q

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

A

the basilar artery

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