If many arterioles suddenly _______, then total peripheral resistance _______ and mean arterial pressure _______.
A) dilate; increases; decreases
B) dilate; decreases; decreases
C) constrict; decreases; decreases
D) dilate; increases; remains the same
E) constrict; increases; decreases

Question

Quizplus · Accepted Answer

Arterioles are responsible for regulating blood flow and resistance to blood flow in the circulatory system. If many arterioles suddenly dilate, the resistance to blood flow in the peripheral circulation will decrease. This will result in a decrease in total peripheral resistance, which in turn will lead to a decrease in mean arterial pressure. Therefore, choice B is the correct answer.

If Many Arterioles Suddenly _______, Then Total Peripheral Resistance _______

If Many Arterioles Suddenly _, Then Total Peripheral Resistance _