Which of the Following Arteries is Not Part of the Cerebral

Question

Which of the following arteries is not part of the cerebral arterial circle (circle of Willis)?
A) Anterior communicating artery
B) Posterior cerebellar artery
C) Posterior communicating artery
D) Anterior cerebral artery
E) Internal carotid artery

Accepted Answer

The posterior cerebellar artery is not part of the cerebral arterial circle (circle of Willis). The circle of Willis is a circulatory anastomosis that supplies blood to the brain and surrounding structures, and it does not include the posterior cerebellar artery, which supplies blood to the cerebellum.