Question

Which of the following statements is correct?

Select one:

a. Total peripheral resistance is directly proportional to venous return

b. Total peripheral resistance is directly proportional to cardiac output

c. Mean arterial pressure is inversely proportional to total peripheral resistance

d. Mean arterial pressure is directly proportional to blood vessel diameter

Answer 1

a. Total peripheral resistance is directly proportional to venous return ---> FALSE (more venous return indicates less total peripheral resistance)

b. Total peripheral resistance is directly proportional to cardiac output --> TRUE (more cardiac output means, more peripheral resistance)

c. Mean arterial pressure is inversely proportional to total peripheral resistance ---> FALSE - MAP is directly proportional to total peripheral resistance

d. Mean arterial pressure is directly proportional to blood vessel diameter ---> FALSE - MAP is inversely proportional to diameter of a blood vessel