Blood Supply Flashcards
Beginning of the anterior circulation
Common carotid to internal carotid
Beginning of the posterior circulation
Subclavian to vertebral, converge to form basilar
Area supplied by the anterior cerebral artery
Centre of the brain (parietal and frontal)
Area supplied by the middle cerebral artery
Lateral brain (Parietal, Frontal, and Temporal)
Area supplied by the posterior cerebral artery
Posterior brain (Occipital and Temporal)
Arteries of the anterior circulation
Anterior cerebral and Middle cerebral
Arteries of the posterior circulation
Posterior cerebral, Superior cerebellar, Pontine, Anterior inferior cerebellar
Link between posterior and anterior circulation
Posterior communicating artery
Link between the anterior cerebral arteries
Anterior communicating artery
Area supplied by the anterior spinal artery
Anterior 2/3 of the spine
Area supplied by the posterior spinal arteries
Posterior 1/3 of the spine
Origin of the anterior spinal artery
Vertebral arteries
Origin of the posterior spinal arteries
Posterior communicating arteries
Vein running along the top of the brain
Superior saggital sinus
Vein running through the middle of the brain
Inferior saggital sinus
Convergence of the inferior and superior saggital sinuses
Confluence of sinuses
Location of the confluence of sinuses
Base of the occipital bone
Continuation of venous drainage from the confluence of sinuses
Transverse sinuses, Sigmoid sinuses, Internal juggular vein
Causes of vasodilation of cerebral vessels
H and carbon dioxide, PNS, High BP
Causes of vasoconstriction of cerebral vessels
Low BP, SNS
Define cerebral perfusion pressure
Pressure forcing blood around the brain
Range for cerebral perfusion pressure
50 - 80mmHg
