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The flashcards below were created by user
pretty4Jesus
on FreezingBlue Flashcards.
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Anterior circulation
- 1. Middle cerebral arteries, MCA
- lateral aspect of cerebral hemispheres
- 2. Anterior cerebral arteries, ACA
- medial aspect of cerebral hemispheres
- deep w/i long fissure
- pericallosal & callosomarginal arteries
- 3. Deep (central) branches– Anterior choroidal artery, lenticulostriate arteries
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Posterior circulations
- from vertebral and basilar arteries
- Vertebral arteries–
- anterior and posterior spinal arteries
- PICA
- Join at PM j(n) to form basilar a
- Basilar artery
- AICS
- pontine branches
- Superior cerebellar arteries
- Posterior cerebral arteries
- deep (central) branches
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PICA
- posterior inf cerebellum
- lateral medulla
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Anterior spinal artery
- anterior 2/3 of spinal cord
- Anterior caudal brainstem
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Posterior spinal artery
- posterior 1/3 of spinal cord
- Posterior caudal brainstem
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AICA
- ant inf cerebellum
- part of BS
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Superior cerebellar artery
- superior cerebellum
- Posterior-lateral rostral brainstem
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Posterior cerebral artery
if uncal gyral hernation/swll can get ischemia of PCA
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SUPERFICIAL venous drainage of brain
- Superficial middle cerebral vein
- Parallels course of middle cerebral artery
- Superior anastomotic vein–
- Links middle cerebral vein to superior longitudinal dural sinus
- Inferior anastomotic vein– Links middle cerebral vein to transverse dural sinus
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DEEP venous drainage od brain
- Basal veins of Rosenthal
- Internal cerebral veins
- “Great” vein of Galen
ALL drain into straight dural sinus--> IJV
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Venous drainage of the spinal cord
- Variable
- NO VALVES-- bidirectional flow can cause spread of tumors/infection to CNS!
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