Exam #1: Review

Question 1

What portions of the brain does the ACA supply?

Answer 1

• Medial aspect of frontal & parietal lobes

- Medial sensorimotor cortex

Question 2

Generally, what portions of the brain does the MCA supply?

Answer 2

Generally, it supplies the entire lateral surface of the cerebral cortex

Question 3

What are the two divisions of the MCA?

Answer 3

Superior

Inferior

Question 4

What does the superior division of the MCA supply?

Answer 4

• Cortex above the lateral fissure
• Lateral frontal cortex
• Precentral & post-central gyri

Question 5

What does the inferior division of the MCA supply?

Answer 5

• Cortex below the lateral fissure
• Lateral temporal lobe
• Parts of the parietal lobe

Question 6

What are the watershed territories?

Answer 6

Areas between the ACA & MCA that are connected via tiny capillaries

Question 7

What causes watershed infarcts?

Answer 7

Severe drops in blood pressure

Question 8

How many posterior & anterior spinal arteries are there? Where does these arteries branch from?

Answer 8

2x posterior
1x anterior

All 3x come off the vertebral arteries

Question 9

What does PICA stand for?

Answer 9

Posterior Inferior Cerebellar Artery

Question 10

What does PICA supply?

Answer 10

• Inferior cerebellum
• Choroid plexus
• Lateral medulla

Question 11

What does AICA stand for?

Answer 11

Anterior Inferior Cerebellar Artery

Question 12

What does AICA supply?

Answer 12

• Anterior/ inferior surface of the cerebellum

- Caudal/ lateral pons

Question 13

What artery does the superior cerebellar artery brach from? What does it supply?

Answer 13

Basilar

• Superior cerebellum
• Caudal midbrain (tectum)
• Rostral pons

Question 14

What do the pontine arteries supply?

Answer 14

Lateral pons

Question 15

What do the posterior cerebral arteries supply?

Answer 15

• Midbrain
• Thalamus
• Medial/ inferior surface of the occipitial & temporal lobes