1.5 neuro - blood supply

Question 1

Which two arteries are the main blood supply to the brain?

Answer 1

Internal carotid, vertebral

Question 2

Where do the internal carotid and vertebral arteries originate?

Answer 2

Subclavian artery; internal carotid from aortic arch, vertebral from subclavian a.

Question 3

What part of the brain does the internal carotid supply

Answer 3

Anterior / rostral

Question 4

What part of the brain does the vertebral artery supply

Answer 4

Posterior / caudal

Question 5

What connects the branches of the internal and carotid arteries to complete the cerebral vascular circle?

Answer 5

Communicating arteries

Question 6

Which two arteries does the internal carotid branch into?

Answer 6

Anterior cerebral, middle cerebral

Question 7

Which two arteries does the basilar artery branch into?

Answer 7

Posterior cerebral (big), posterior communicating (small)

Question 8

The two branches of the vertebral artery joins into which artery

Answer 8

Basilar

Question 9

The two branches of the anterior cerebral artery are connected by which artery

Answer 9

Anterior communicating

Question 10

What part of the brain does the anterior cerebral artery supply

Answer 10

Medial aspect of the frontal and parietal lobes

Question 11

What part of the brain does the middle cerebral artery supply

Answer 11

The lateral aspect of the frontal, temporal, and parietal lobes

Question 12

What part of the brain does the posterior cerebral artery supply

Answer 12

Medial and lateral aspect of the occipital lobe, portion of the medial aspect of the parietal lobe

Question 13

Where does blood exchange happen in the brain

Answer 13

Only at the capillary level (blood-brain barrier), NOT in any veins or arteries