Cerebral blood flow Flashcards
What artery does anterior circulation start with?
aorta/internal carotid artery
What artery does posterior circulation start with?
Subclavian artery
What arteries form the basilar artery?
vertebral
The carotid artery becomes the _____ artery.
middle cerebral artery
(true/false) blood in the circle of willis flows one way.
FALSE (blood in the circle of willis can flow in any direction)
Occlusion of what artery can result in visual problems?
posterior cerebral artery
What do the vertebral arteries supply?
brainstem
What does the basilar artery supply?
brainstem (pons)
What does the posterior cerebral artery supply?
brain stem, cerebellum, some cortex
What are the arteries of anterior circulation?
carotids, anterior cerebral artery, middle cerebral artery
What arteries are involved in posterior circulation?
vertebral arteries, basilar, posterior cerebral artery
What percentage of blood flow does the brain use?
10-15%
What range should a constant MAP be?
60-160
Cerebral perfusion pressure should be in what range?
70-90 mmHg
What is the formula for cerebral perfusion pressure?
CPP= MAP - ICP
