Blood flow to a tissue will increase if the
A) level of oxygen at the tissue increases.
B) level of carbon dioxide at the tissue decreases.
C) veins constrict.
D) arterioles dilate.
E) all of the above

Question

Quizplus · Accepted Answer

Arterioles are responsible for controlling blood flow into capillaries, and dilation of arterioles will increase blood flow to a tissue. Choices A and B are not necessarily true in all cases, and choice C would actually decrease blood flow if veins constrict.

Blood Flow to a Tissue Will Increase If the