Chapter 13 Review # 1-35

1. The second heart sound (dup) is created by the: a. closing of the A-V valves b. opening of the A-V valves c. closing of the semilunar valves d. opening of the semilunar valves

2. Valves are present in: a. arteries b. arterioles c. veins d. capillaries

3. On an ECG, depolarization of the ventricles is represented by the: a. QRS complex b. T wave c. P wave d. S-T segment

4. On an ECG, depolarization of the atria is represented by: a. QRS complex b. T wave c. P wave d. S-T segment

5. On an ECG, repolarization of the ventricles is represented by the: a. QRS complex b. T wave c. P wave d. S-T segment

6. The function of baroreceptors is to monitor changes in: a. heart rate b. stroke volume c. blood pressure d. blood viscosity

7. Baroreceptors are located in the: a. wall of the right ventricle b. medulla oblongata c. walls of the capillaries d. wall of the aorta and carotid arteries

8. Baroreceptors send nerve impulses to the: a. medulla oblongata only b. chemoreceptors only c. S-A node only d. Both the medulla oblongata and the S-A node

9. The correct sequence of parts that function to carry cardiac impulses is a. S-A node, A-V node, A-V bundle, Purkinje fibers b. S-A node, Purkinje fibers, A-V node, A-V bundle c. A-V node, S-A node, Purkinje fibers, A-V bundle d. A-V node, A-V bundle, Purkinje fibers, S-A node

10. The decrease in the speed of conduction from the A-V node through the A-V bundle results in: a. failure of the ventricles to contract b. adequate time for the ventricles to fill c. delayed opening of the A-V valves d. a decrease in the rate of blood flow from the atria to the ventricles

11. Blood flows from the pulmonary veins into the: a. pulmonary arteries b. right atrium c. lungs d. left atrium

12. The bicuspid valve is located between the: a. right ventricle and the aorta b. right ventricle and the pulmonary trunk c. left atrium and the left ventricle d. right and left atria

13. The myocardium is made of: a. smooth muscle b. cardiac muscle c. skeletal muscle d. endothelium

14. The atrioventricular valves close when the: a. S-A node fires b. Atria contract c. Ventricles relax d. Ventricles contract

15. During the normal cardiac cycle, the atria contract when they are directly stimulated by the: a. S-A node b. A-V node c. Conduction myofibers d. Baroreceptors

16. From the coronary sinus, blood normally flows next into the: a. aorta b. pulmonary trunk c. right atrium d. left atrium

17. The typical heart sounds are made by the: a. vibration of the chordae tendineae b. flow of blood into the coronary arteries c. opening of the valves d. closing of the valves

18. There is a semilunar valve between the: a. right ventricle and the aorta b. right ventricle and the pulmonary trunk c. left atrium and the left ventricle d. right atrium and right ventricle

19. The initiation of the heart beat is the responsibility of the: a. cardiovascular center b. baroreceptors c. vagus nerve d. S-A node

20. The function of the chordae tendineae is to: a. pull the walls of the ventricles inward during contraction b. open the semilunar valves c. open the A-V valves d. close the A-V valves during ventricular contraction

21. Blood flows from the superior vena cava into the: a. right atrium b. inferior vena cava c. left atrium d. aorta

Which numbers indicate the ventricles?

Which numbers indicate the atria?

Which structure carries deoxygenated blood from the lower part of the body to the heart?

Which vessels bring freshly oxygenated blood back to the heart from the lungs?

Which chamber pumps blood to the lungs?

The bicuspid/mitral valve is found between these two structures? Between 3 & 4

Which vessel carries blood out to the body?

The structure labeled #6 carries blood to the __?__. lungs

The pulmonary semilunar valve is between which two structures? Rt. Ventricle & Pulmonary trunk

31. The initiation of the heart beat is the responsibility of the: a. cardiovascular center b. baroreceptors c. vagus nerve d. S-A node

Heart diagram key 1. right atrium 1. right atrium 2. right ventricle 2. right ventricle 3. left atrium 3. left atrium 4. left ventricle 4. left ventricle 5. aorta 5. aorta 6. pulmonary trunk 6. pulmonary trunk 7. pulmonary veins 7. pulmonary veins 8. Inferior vena cava 8. Inferior vena cava