Cardiac Physiology Test Questions and Answers.

1. The systemic circulation: (a) receives more blood than the pulmonary circulation does. (b) receives blood from the left ventricle. (c) is a high pressure system compared to the pulmonary circulation. (d) receives blood from the left ventricle and is a high pressure system compared to the pulmonary circulation. (e) all of these answers. ANSWER: d 2. Which valve(s) prevent regurgitation of blood from a right ventricle to atrium? (a) tricuspid. (b) mitral. (c) bicuspid. (d) both (a) and (b) above. (e) all of these answers. ANSWER: a 3. Semilunar valves: (a) prevent backflow of blood from the ventricles to the atria. (b) prevent backflow of blood from the atria to the ventricles. (c) prevent backflow of blood from the ventricles to the arterial trunks. (d) prevent backflow of blood from the arterial trunks to the ventricles. (e) none of these answers.