L08 Blood Supply of the Brain

Question 1

go find a brain and name all the vascular territories on lateral and medial sides.

Answer 1

good job.

Question 2

ICA enters the skull through which hole?

Answer 2

carotid canals

Question 3

what’s the carotid siphon?

Answer 3

when the carotid bends as it enters the skull, and proceeds along the cavernous sinus

Question 4

why do the vertebral arteries kink as they enter the braincase?

Answer 4

as they come through the vertebral foramina, they have to bend to travel to the foramen magnum.

Question 5

basiliar artery lies on which structure?

Answer 5

anterior pons.

Question 6

circle of willis includes which arteries?

Answer 6

2xACA
1xAComm
2xMCA
2xPComm
2xPCA

Question 7

the anterior cerebral artery divides into which two arteries?

Answer 7

pericallosal (inf) and callosomarginal (sup)

Question 8

the ACA supplies which surface and pole of the brain?

Answer 8

medial surface and frontal pole

Question 9

the MCA supplies which surface and pole of the brain?

Answer 9

superior-lateral surface and temporal pole

Question 10

the PCA supplies which surface and pole of the brain?

Answer 10

inferior surface and occipital pole

Question 11

ICA fill arteriogram includes which arteries?

Answer 11

ACA, MCA, +branches

Question 12

VA fill arteriogram includes which arteries?

Answer 12

vertebral, basilar, PCA, +branches

Question 13

what’s the term for the borders of vascular terriories?

Answer 13

watershed areas

Question 14

what supplies the midbrain?

Answer 14

PCA

Question 15

name a numerous and a single type of artery that supplies the anterior spinal artery with boosts in blood supply.

Answer 15

anterior segmental medullary arteries
great anterior segmental medullary artery of adamkiewicz.
(posterior segmental medullary arteries in the back)

Question 16

which arteries supply the nerve roots but not the spinal cord?

Answer 16

radicular arteries.

spinal branches will go off to supply the cord itself

Question 17

which veins run around the corpus callosum?

Answer 17

inferior sagittal sinus (sup)

internal cerebral vein (inf)

Question 18

which vein runs into the lateral fissure?

Answer 18

middle anastomotic vein

Question 19

common vessel torn in epidural hematoma

Answer 19

middle meningeal

Question 20

common vessel torn in subdural hematoma

Answer 20

cerebral vein, as it crosses the subdural space

Question 21

common vessel torn in subarachnoid hemorrhage

Answer 21

A/M/P cerebral artery

Question 22

name the top 2 causes of subarachnoid hemorrhage

Answer 22

trauma and ruptured aneurysm

Question 23

PICA is a branch of what?

Answer 23

vertebral

Question 24

AICA is a branch of what?

Answer 24

basilar (at the pontomedullary junction)

Question 25

the superior cerebellar artery is a branch of what?

Answer 25

basilar (at the midbrain-pons junction)