Blood Supply of CNS Flashcards
Which artery feeds into the cerebral arteries?
Internal carotid artery
Which arteries feed into the basilar artery?
Vertebral arteries
Where is the Circle of Willis located in relation to the meninges?
Subarachnoid space
What is the Circle of Willis?
Anastomosis that unites internal carotid artery and vertebrobasilar systems
What structures are supplied by the anterior cerebral artery?
Superior frontal gyrus, cingulate gyrus, olfactory cortex, corpus callosum, basal ganglia
What structures are supplied by the middle cerebral artery?
Frontal lobe, parietal lobe
What structures are supplied by posterior cerebral artery?
Some parts of the temporal, parietal, and occipital cortices
What does the basilar artery supply?
Pons
What are the three cerebellar arterial supplies?
Superior cerebellar artery
Anterior inferior cerebellar artery
Posterior inferior cerebellar artery
What are the three major sinuses in the head?
Superior sagittal sinus
Inferior sagittal sinus
Straight sinus
Which vein drains into the straight sinus?
Great cerebral vein of Galen
Where do all the cerebral veins and sinuses ultimately drain into?
Internal jugular vein
What symptoms are associated with an occlusion of the anterior cerebral artery?
Loss of voluntary movement
What symptoms are associated with an occlusion of the middle cerebral artery?
Broca’s and Wernicke’s aphasia, face and arm weakness
What symptoms are associated with an occlusion of the posterior cerebral artery?
Vision loss
