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Cerebrovascular Anatomy and Pathophysiologya 

Cerebrovascular Anatomy and Pathophysiologya
Chapter:
Cerebrovascular Anatomy and Pathophysiologya
Source:
Mayo Clinic Neurology Board Review
Author(s):

Kelly D. Flemming

DOI:
10.1093/med/9780190214883.003.0001

The cerebrospinal vasculature originates at the aortic arch. The right brachiocephalic divides into the right common carotid and subclavian artery. The left common carotid and left subclavian arteries arise directly from the aortic arch. The 2 common carotid arteries bifurcate into the internal and external carotid arteries. The anterior circulation of the brain includes the distal branches from the internal carotid artery, including the anterior and middle cerebral arteries. The vertebral arteries arise off the subclavians and join at the pontomedullary junction to form the basilar artery. The vertebrobasilar system and distal branches are commonly known as the posterior circulation of the brain.

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