Which two arteries most significantly contribute to the cerebral arterial circle (Circle of Willis) supplying blood to the brain?
A) vertebral and external carotid
B) internal carotid and posterior cerebral
C) external carotid and internal jugular
D) basilar and internal carotid

Question

Quizplus · Accepted Answer

The internal carotid and basilar arteries are the main contributors to the Circle of Willis, with the basilar artery formed by the union of the vertebral arteries.

Which Two Arteries Most Significantly Contribute to the Cerebral Arterial