Quiz 5 - A

Notes

Quiz 5 - Anatomy and Physiology I 1. 1. The ______ is the difference between the resting and maximal cardiac output. A. stroke volume B. end-diastolic volume C. ejection fraction D. cardiac reserve E. end-systolic volume 2. 2. Most of the middle layer in the heart wall is composed of A. chondrocytes B. smooth muscle cells C. Fibrocytes D. cardiac muscle cells E. epithelial cells 3. 3. As a result of the long refractory period in the cardiac action potential, cardiac muscle cannot exhibit A. treppe B. tonus C. tetany D. fatigue E. recruitment 4. 4. Which of the following describes what is directly measured by an ECG? A. end-systolic volume B. neural stimulation of cardiac myocytes C. the force of contractions D. blood vessel resistance E. electrical conduction 5. 5. Which of the following statements is true concerning differences between the right and left ventricles? A. The right ventricle pumps with more force compared to the left. B. The efFiciency of the right ventricle is increased by the left ventricle because the wall of the left ventricle pushes into the right ventricle. C. The left ventricle pumps twice as much blood as the right ventricle. D. The right ventricle pumps bloo...