Multiple Choice
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
Correct Answer:

Verified
Correct Answer:
Verified
Q24: The brachiocephalic trunk gives rise directly to
Q25: The branches of the arch of the
Q26: Arteries that anastomose are able to provide
Q27: The first two vessels to branch from
Q28: The thinnest-walled blood vessels in the body
Q30: Which of the following is NOT considered
Q31: Pulmonary circulation differs from systemic circulation in
Q32: The blood that sustains lung tissue is
Q33: The superior and inferior vena cavae are
Q34: The most distal muscle cells of the