1. Name three mechanisms that can increase cardiac output. 2. Explain the effect on blood flow of mitral valve incompetence. 3. Explain the reason for each of the following: a. High elastic fiber...

1. Name three mechanisms that can increase cardiac output.

2. Explain the effect on blood flow of mitral valve incompetence.

3. Explain the reason for each of the following:

a. High elastic fiber content in the aorta

b. Smooth muscle in the arterioles

c. Extensive capillaries in the liver and lungs

d. Valves in the leg veins