What changes would be expected in blood vessels in the following areas during exercise?
I.Capillaries of working muscles would fully dilate
II.Visceral blood vessels would dilate
III.Blood vessels of non-working muscles would constrict
A) I and III only
B) I, II, and III
C) I only
D) II and III only

Question

Quizplus · Accepted Answer

During exercise, the capillaries of working muscles will fully dilate to increase blood flow to those muscles. At the same time, blood vessels of non-working muscles will constrict to redirect blood flow towards the working muscles. However, visceral blood vessels would not necessarily dilate during exercise, so option II can be eliminated. Therefore, the correct answer is A, which includes options I and III only.

What Changes Would Be Expected in Blood Vessels in the Following