Vasculature of the CNS

Question 1

What is the most common place in the circle of willis for a berry aneurysm?

Answer 1

Anterior communicating artery

Question 2

What parts of the motor and sensory cortex are supplied by the anterior cerebral artery?

Answer 2

Trunk, leg, foot

Question 3

What parts of the motor and sensory cortex are supplied by the middle cerebral artery?

Answer 3

Arm, Hand, Face, Tongue

Question 4

What does the posterior communicating artery supply?

Answer 4

Optic chiasm and tract, ventral hypothalamus, and parts of the thalamus

Question 5

What does the anterior choroidal artery supply?

Answer 5

Choroid plexus, hippocampus, amygdala, parts of the thalamus, internal capsule and corpus striatum

Question 6

What do the pontine arteries supply?

Answer 6

Pons

Question 7

What does the labyrinthine artery supply?

Answer 7

Inner ear

travels through the internal acoustic meatus

Question 8

What does the anterior inferior cerebellar artery supply?

Answer 8

Anterior/inferior cerebellum, pons, and medulla

Question 9

What does the superior cerebellar artery supply?

Answer 9

Superior surface of the cerebellum, some deep nuclei, parts of pons and midbrain

Question 10

What does the posterior cerebral artery supply?

Answer 10

Midbrain, occpitial lobe, inferior lateral and medial temporal lobe, parts of the thalamus

Question 11

What does the posterior inferior cerebellar artery supply?

Answer 11

Inferior suface of the cerebellum, choroid plexus of the 4th ventricle, dorsolateral medulla

Question 12

What is caused by occlusion of the PICA?

Answer 12

Wallenberg’s syndrome (lateral medullary syndrome)

Damage to nucleus ambiguus that innervates the laryngeal muscles

Results in dysphonia, dysarthria, and dysphagia