1. The pulmonic and aortic valves are open during: a. Systole b. Diastole 2. The most numerous blood vessels in the body are the: a. Arteries b. Capillaries c. Venules d. Veins 3. Blood flow between...

1. The pulmonic and aortic valves are open during:

a. Systole

b. Diastole

2. The most numerous blood vessels in the body are the:

a. Arteries

b. Capillaries

c. Venules

d. Veins

3. Blood flow between the heart and lungs is _______ circulation.

a. Systemic

b. Venous

c. Myocardial

d. Pulmonary