Neurosciences 1.13 -- Blood Supply of Brain
Terms
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- circle of willis is formed from which arteries?
- two anterior cerebral arteries joined by the anterior communicating artery, the internal carotids, the two posterior communicating arteries
- where does the internal carotid artery enter the subarachnoid space?
- at the anterior clinoid process
- what 5 branches does the internal carotid give off?
-
(1) ophthalmic A
(2) posterior communicating cerebral A
(3) anterior choroidal A
(4) anterior cerebral artery
(5) middle cerebral artery - what fissure does the middle cerebral artery pass through?
- lateral fissure
- what do the vertebral arteries give rise to?
- anterior spinal, posterior spinal, PICA
- which 5 arteries does the basilar artery give rise to?
-
(1) AICA
(2) labyrinthine or auditory A which supplies the inner ear
(3) pontine arteries
(4) superior cerebellar A
(5)) posterior cerebellar A - superficial veins
- drain blood from cortex and subcortical regions into the superior sagittal sinus
- deep veins
- drain deep cerebral substance including the basal ganglia and dorsal thalamus into the internal and deep cerebral veins to reach the great vein of galan
- superficial cerebral veins include
-
(1) superior cerebral vein
(2) inferior cerebral vein
(3) superficial middle cerebral vein - deep cerebral veins include
-
(1) internal cerebral veins
(2) basal veins (of Rosenthal)
(3) great cerebral vein of Galen