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L5 - CNS (Blood Supply, Ventricles, and Spinal Cord) Flashcards

(11 cards)

1
Q

What do the vertebral arteries arise from?

A

The left and right subclavian arteries

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2
Q

What do the vertebral arteries merge to become?

A

The basilar artery

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3
Q

What do the common carotid arteries arise from and bifurcate to become?

A

The common carotid arteries arise from the brachiocephalic artery (right) and the aorta (left); they bifurcate to become the internal and external carotid arteries.

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4
Q

What vascular structure unites the arterial blood supply within the brain from the common carotid arteries and the vertebral arteries?

A

The circle of Willis

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5
Q

What cluster of capillaries lines the ventricles and is responsible for producing CSF?

A

The choroid plexus

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6
Q

Name the brain ventricles from anterior to posterior.

A

Lateral ventricles –> Foramina of Monro –> Third ventricle –> Cerebral aquaduct –> Fourth ventricle –> Foramina of Luschka (lateral) and Magendie (medial)

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7
Q

The spinal cord has three slits down its length. What are they?

A

The anterior median fissure, the central canal, and the posterior median sulcus

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8
Q

What term refers to the sections of spinal cord gray matter; what term refers to the sections of spinal cord white matter?

A

Horns; funiculi

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9
Q

How many sections make up the spinal cord gray matter? What are they called?

A

3; anterior (motor), lateral (motor), and posterior (sensory)

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10
Q

How many funiculi sections make up the spinal cord white matter? What are they called?

A

3; anterior, lateral, and posterior

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11
Q

What is the name of the sensory nerve cell bundles lining the spinal cord?

A

Dorsal root ganglia

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