2. Side of the heart that contains deoxygenated (blue) blood A. Right B. Left C. Both D. Neither Answer: A

3. Period of heart chamber relaxation (bottom number in blood pressure reading) A. Systole B. Diastole C. Resistance D. Velocity E. Ventriculation Answer: B

4. Pacemaker of the heart A. Sinoatrial (SA) node B. Atrioventricular (AV) node C. His node D. Purkinje node Answer: A

5. Carry blood to the heart A. Arteries B. Arterioles C. Veins D. Venules E. Both A and B F. Both C and D Answer: F

6. Valve between right atrium and ventricle A. Bicuspid B. Tricuspid C. Pulmonary D. Aortic E. Semilunar Answer: B

7. Movement of molecules from high to low concentration A. Diffusion B. Bulk flow C. Transcytosis D. Filtration E. Endocytosis Answer: A

8. Separates right and left chambers of heart A. bicuspid B. tricuspid C. septum D. diaphragm E. apex Answer: C

9. Records cardiac cycle A. Electroencephalogram (EEG) B. Myogram C. Electrocardiogram (ECG) D. MRI E. Spirometer Answer: C

10. Site of exchange between blood and tissues A. Arteries B. Aterioles C. Capillaries D. Venules E. Veins F. All of these Answer: C

11. Vessels that supply blood to heart A. Cardiac arteries B. Coronary arteries C. Pulmonary arteries D. Carotid arteries E. Aortic arteries Answer: B

12. Gives heartbeat its sound A. Valves closing B. Muscle contractions C. Excitation of nodes D. Bundles of His E. Blood movement Answer: A

13. What arteries branch into A. Veins B. Venules C. Capillaries D. Aterioles E. Vena Cava Answer: D

14. Valve that keeps blood from flowing back into the left ventricle A. Bicuspid B. Tricuspid C. Aortic D. Pulmonary E. A-V valve Answer: C

15. Also called mitral valve A. Bicuspid B. Tricuspid C. Aortic D. Pulmonary E. A-P valve Answer: A

16. Where in chest heart sits A. Left side B. Right side C. Middle D. Not in chest Answer: C

17. Middle layer of heart wall A. Epicardium B. Myocardium C. Endocardium D. Pericardium E. Peritoneum Answer: B

18. Outside layer of heart A. Epicardium B. Myocardium C. Visceral pericardium D. Endocardium E. Both a and c Answer: E

19. In which of the following areas would you find oxygenated (red) blood? A. Right atrium B. Left ventricle C. Pulmonary artery D. Pulmonary vein E. Both B and C F. Both B and D Answer: F

20. Where AV node sends cardiac signal A. SA node B. AV bundle (bundle of HIS) C. Purkinje fiber D. Pulmonary node E. Atrial septum Answer: B

21. A B C D E 1.P- Wave; atrial contraction 2.T- Wave; ventricular repolarization 3.QRS interval; ventricular contraction 4.Q-T interval Answer: A Answer: E Answer: C Answer: D