Mean arterial blood pressure can be regulated by changing which of the following?
1) Capacity of the circulatory system
2) Effective volume of circulating blood
3) Tone of the capacitance vessels (veins)
A)1 and 2 only
B)2 only
C)1, 2, and 3
D)3 only

Question

Quizplus · Accepted Answer

Mean arterial blood pressure can be regulated by changing the capacity of the circulatory system (by altering the diameter of arterioles), effective volume of circulating blood (by increasing or decreasing fluid intake) and tone of the capacitance vessels (veins). Therefore, the correct choice is C.

Mean Arterial Blood Pressure Can Be Regulated by Changing Which