L08 Blood Supply of the Brain Flashcards
go find a brain and name all the vascular territories on lateral and medial sides.
good job.
ICA enters the skull through which hole?
carotid canals
what’s the carotid siphon?
when the carotid bends as it enters the skull, and proceeds along the cavernous sinus
why do the vertebral arteries kink as they enter the braincase?
as they come through the vertebral foramina, they have to bend to travel to the foramen magnum.
basiliar artery lies on which structure?
anterior pons.
circle of willis includes which arteries?
2xACA 1xAComm 2xMCA 2xPComm 2xPCA
the anterior cerebral artery divides into which two arteries?
pericallosal (inf) and callosomarginal (sup)
the ACA supplies which surface and pole of the brain?
medial surface and frontal pole
the MCA supplies which surface and pole of the brain?
superior-lateral surface and temporal pole
the PCA supplies which surface and pole of the brain?
inferior surface and occipital pole
ICA fill arteriogram includes which arteries?
ACA, MCA, +branches
VA fill arteriogram includes which arteries?
vertebral, basilar, PCA, +branches
what’s the term for the borders of vascular terriories?
watershed areas
what supplies the midbrain?
PCA
name a numerous and a single type of artery that supplies the anterior spinal artery with boosts in blood supply.
anterior segmental medullary arteries
great anterior segmental medullary artery of adamkiewicz.
(posterior segmental medullary arteries in the back)
which arteries supply the nerve roots but not the spinal cord?
radicular arteries.
spinal branches will go off to supply the cord itself
which veins run around the corpus callosum?
inferior sagittal sinus (sup)
internal cerebral vein (inf)
which vein runs into the lateral fissure?
middle anastomotic vein
common vessel torn in epidural hematoma
middle meningeal
common vessel torn in subdural hematoma
cerebral vein, as it crosses the subdural space
common vessel torn in subarachnoid hemorrhage
A/M/P cerebral artery
name the top 2 causes of subarachnoid hemorrhage
trauma and ruptured aneurysm
PICA is a branch of what?
vertebral
AICA is a branch of what?
basilar (at the pontomedullary junction)
the superior cerebellar artery is a branch of what?
basilar (at the midbrain-pons junction)
