Name: ______________________________________ A&P Chapter 12 Practice Test (p. 1 of 9)

1. _____________________________ blood circulation that flows through the lungs

2. _____________________________ rounded point of the heart

3. _____________________________ chambers of the heart that send blood to the lungs and body

4. _____________________________ the cavity in which the heart sits

5. _____________________________ shallow external groove that extends around the heart, separating the atria from the ventricles

6. _____________________________ partition between the atria that separates them

7. _____________________________ valve that separates the right atrium from the right Ventricle

8. _____________________________ muscular pillars in the ventricle that are

responsible for keeping the valves from opening backwards into the atria.

9. _____________________________ tendons that connect the papillary muscles to the

cusps of the atrioventricular valves.

10. _____________________________ arteries that supply blood to the wall of the heart

11. _____________________________ thick ridges of cardiac muscle that line the interior Walls of the ventricle

12. _____________________________ the pacemaker of the heart

13. _____________________________ a recording of the electric currents produced by the Heart conduction system

14. _____________________________ contraction of the ventricles

Name: ______________________________________ A&P Chapter 12 Practice Test (p. 2 of 9)

15. Name the parts of the diagram above. A. ____________________________ K. ____________________________

B. _____________________________ L. ____________________________

C. ____________________________ M. ____________________________

D. ____________________________ N. ____________________________

E. ____________________________ O. ____________________________

F. ____________________________ P. ____________________________

G. ____________________________ Q. ____________________________ H. ____________________________ R. ____________________________

I. ____________________________ S. ____________________________

J. ____________________________ T. ____________________________

Name: ______________________________________ A&P Chapter 12 Practice Test (p.3 of 9)

16. Name the parts in the diagram above

A. ____________________________ D. ____________________________

B. _____________________________ E. ____________________________

C. ____________________________ F. ____________________________

17. A. Label the diagram to the right

with the correct letters.

B. Use three colors to shade the parts of the diagram that are associated with:

Ventricular polarization Ventricular depolarization Atrial depolarization

Make sure you label each with the correct term

Name: ______________________________________ A&P Chapter 12 Practice Test (p. 4 of 9)

18. __________ The blood vessels that supply oxygenated blood to the heart tissue A. Pulmonary veins B. Coronary arteries C. Coronary sinuses D. Pulmonary trunks E. Venae Cavae

19. __________ Which of the following statements about the coronary arteries is true?

A. The left coronary artery supplies the anterior wall of the heart and most of the left ventricle

B. The right coronary artery supplies most of the right ventricle C. Blood flow through the coronary arteries is greatest during ventricular

diastole D. A heart attack occurs if a coronary artery is blocked E. All of these are true

20. __________ A large groove that runs around the heart, and separates the atria from

the ventricles A. Anterior interventricular septum B. Posterior interventricular septum C. Coronary sinus D. Coronary sulcus E. Cardiac fissure

21. __________ The atria of the heart

A. Are separated from each other by the interventricular septum B. Function primarily as reservoirs for blood collection C. Function primarily as the pumps of the heart D. Receive blood from the aorta and pulmonary trunk E. Have all of these characteristics

22. __________ Which of these valves is found between the right atrium and the right

ventricle? A. Tricuspid valve B. Bicuspid (mitral) valve C. Aortic semilunar valve D. Pulmonary semilunar valve E. Interventricular septum

Name: ______________________________________ A&P Chapter 12 Practice Test (p. 5 of 9)

23. __________ The bicuspid (mitral) valve A. Is the location of the pacemaker cells of a normal heart B. Prevents blood flow from the right ventricle to the right atrium C. Prevents blood flow from the left ventricle to the left atrium D. Prevents blood flow from the pulmonary artery to the right ventricle E. Prevents blood flow from the aorta to the left ventricle

24. __________ The aortic semilunar valve

A. Is the location of the pacemaker cells of a normal heart B. Prevents blood flow from the right ventricle to the right atrium C. Prevents blood flow from the left ventricle to the left atrium D. Prevents blood flow from the pulmonary artery to the right ventricle E. Prevents blood flow from the aorta to the left ventricle.

25. _________ The pulmonary semilunar valve

A. Is the location of the pacemaker cells of a normal heart B. Prevents blood flow from the right ventricle to the right atrium C. Prevents blood flow from the left ventricle to the left atrium D. Prevents blood flow from the pulmonary artery to the right ventricle E. Prevents blood flow from the aorta to the left ventricle.

26. __________ The tricuspid valve

A. Is the location of the pacemaker cells of a normal heart B. Prevents blood flow from the right ventricle to the right atrium C. Prevents blood flow from the left ventricle to the left atrium D. Prevents blood flow from the pulmonary artery to the right ventricle E. Prevents blood flow from the aorta to the left ventricle.

27. __________ Which of these is NOT one of the large veins carrying blood to the heart?

A. Superior vena cava B. Inferior vena cava C. Pulmonary trunk D. Pulmonary vein E. All of the above are large veins carrying blood to the heart

28. __________ In a normal heart, when the right ventricle contracts, it forces blood

through the A. Tricuspid valve B. Bicuspid valve C. Aortic semilunar valve D. Pulmonary semilunar valve

Name: ______________________________________ A&P Chapter 12 Practice Test (p. 6 of 9)

29. __________ Which of these statements concerning the functional characteristics of the heart chambers is NOT correct?

A. During ventricular diastole, blood collects in the right and left atria B. At the very beginning of ventricular diastole, blood flows directly from the

atria into the relaxed ventricles C. During ventricular systole, the atrioventricular valves close D. During ventricular diastole, the semilunar valves open E. None of the above

30. ___________ The right side of the heart forces blood flow

A. To the body B. To the lungs C. Through the systemic circulation D. Both to the body and through the systemic circulation E. Both to the lungs and through systemic circulation

31. __________ Papillary muscles

A. Contract when the ventricles relax B. Prevent the valves from closing during ventricular diastole C. Are attached to the semilunar valves via the chordae tendineae D. Prevent the backflow of blood into the atria during ventricular systole E. Prevent the backflow of blood into the ventricles from the aorta

32. __________ The cardiac skeleton

A. Forms fibrous rings around the atrioventricular and semilunar valves B. Serves as electrical insulation between the atria and ventricles C. Provides a rigid source of attachment for cardiac muscle D. Provides solid support for the heart valves E. Has all of these characteristics

33. __________ Intercalated disks in cardiac muscle

A. Are a type of gap junction B. Allow all of the muscle fibers in an area to contract at the same time C. Prevent the cells from pulling apart D. Reduce the electrical resistance between cells, allowing action potentials to

pass more easily from cell to cell E. All of these are correct

Name: ______________________________________ A&P Chapter 12 Practice Test (p.7 of 9)

34. __________ Which of the following structures are able to spontaneously generate an action potential?

A. Sinoatrial node (SA node) B. Atrioventricular node (AV node) C. Atrioventricular bundle D. Right and left bundle branches E. All of the items can spontaneously generate an action potential

35. __________ As the impulse from the SA node spreads across the atria, it is prevented

from stimulating the ventricles by A. SA node B. AV node C. Tricuspid and bicuspid valves D. Semilunar vaqlves E. The fibrous cardiac skeleton

36. __________ If the SA node is unable to function

A. An ectopic beat may be initiated by another part of the heart B. The heart rate will be slower C. The AV node will become the pacemaker for the heart D. All of these are possible E. None of these would occur

37. __________ Which of these statements concerning the conduction system of the

heart are true? A. The sinoatrial (SA) node of the heart acts as the pacemaker B. The SA node is located on the upper wall of the left atrium C. The AV node conducts action potentials rapidly through it D. Action potentials are carried slowly through the atrioventricular bundle E. Both the sinoatrial (SA) node of the heart acts as the pacemaker and the SA

node is located on the upper wall of the left atrium (A and B are both true)

38. __________ In a normal electrocardiogram (ECG or EKG) A. The P wave results from repolarization of the atria B. The QRS complex results from depolarization of the ventricles C. The T wave represents repolarization of the ventricles D. During the P-R interval, the ventricles contract E. Both the QRS complex results from depolarization of the ventricles and the T

wave represents repolarization of the ventricles are both correct (B and C)

Name: ______________________________________ A&P Chapter 12 Practice Test (p.8 of 9)

39. __________ If an ECG indicated no P wave, a possible explanation would be A. Damage to the SA node B. Damage to the AV node C. Damage to ventricular muscle D. Excessive vagus nerve stimulation E. Ectopic beats in the ventricles

40. __________ When listening to her heart, the doctor notices that Maria has a swishing

sound immediately after the first heart sound is heard. Which of the following is correct?

A. She has a heart murmur B. The sound occurs immediately after the AV valves close C. Maria may have an incompetent valve D. The sound is generated by the leakage of blood through a poorly closed valve E. All of the items are possible

41. __________ Ventricular systole:

A. Occurs between the first and second heart sounds B. Occurs just prior to the first heart sound C. Lasts longer than ventricular diastole D. Is the relaxation phase of the ventricles E. All of the items are true of ventricular systole

42. __________ Cardiac output is equal to

A. The volume of blood pumped per minute B. The volume of blood pumped per beat C. The volume of blood pumped per day D. The rate of heart beat E. All of the above

43. __________ Stroke volume is equal to

A. The volume of blood pumped per minute B. The volume of blood pumped per beat C. The volume of blood pumped per day D. The rate of heart beat E. All of the above

44. __________ When ventricular pressure exceeds atrial pressure

A. Ejection occurs B. Atria pump blood into the ventricles C. The ventricle is in diastole D. Blood is pumped into the atrium E. AV (atrioventricular) valves close

Name: ______________________________________ A&P Chapter 12 Practice Test (p. 9 of 9)

45. The following is a list of vessels and structures. Give the correct order for the flow of blood entering the heart from the BODY

1) Right atrium 9) pulmonary vein 2) Left atrium 10) mitral/bicuspid valve 3) Right ventricle 11) tricuspid valve 4) Left ventricle 12) pulmonary semilunar valve 5) Superior and inferior vena cava 13) aortic semilunar valve 6) Aortic arch 14) lungs 7) Pulmonary artery 8) Pulmonary trunk

46. Arrange the following parts of the conduction system of the heart in the correct order as an action potential would pass them.

1) Purkinje Fibers 2) AV node (atrioventricular node) 3) SA node (sinoatrial node) 4) Atrioventricular bundle (Bundle of His) 5) Bundle branches

47. Give four functions of the heart.

A&P Ch 12 Practice Test Answer Key

1. Pulmonary circulation 2. Apex 3. Ventricles 4. Mediastinum 5. Coronary sulcus 6. Interatrial septum 7. Tricuspid 8. Papillary muscles 9. Chordae tendineae 10. Coronary arteries 11. Trabeculae Carnea 12. SA node (sinoatrial node) 13. Electrocardiogram 14. Systole 15. A. superior vena cava

B. pulmonary artery C. aortic semilunar valve

D. Pulmonary semilunar valve E. Pulmonary veins F. Right atrium G. Tricuspid valve H. Papillary muscles I. Right ventricle J. inferior vena cava K. aortic arch L. pulmonary artery M. Pulmonary trunk N. Pulmonary veins O. Left atrium P. Bicuspid (mitral) valve Q. Left ventricle R. Chordae tendineae S. Papillary muscles T. Interventricular septum

16. A. Sinoatrial node (SA node) B. atrioventricular node (AV node) C. (Bundle of His) D. left bundle branch

E. right bundle branch F. Purkinje fibers

Atrial Depolarization

Ventricular Depolarization

Ventricular Repolarization

17. 18. B. coronary arteries 19. E. all of these are true 20. D. coronary sulcus 21. B. function primarily as reservoirs for blood collection 22. A. tricuspid valve 23. C. prevents blood flow from the left ventricle to the left atrium 24. E. prevents blood flow from the aorta to the left ventricle 25. D. prevents blood flow from the pulmonary artery to the right ventricle 26. B. prevents blood flow from the right ventricle to the right atrium 27. C. pulmonary trunk 28. D. pulmonary semilunar valve 29. E. during ventricular diastole, the semilunar valves open 30. B. to the lungs 31. D. prevent the backflow of blood into the atria during ventricular systole 32. E. has all these characteristics 33. E. all of these are correct 34. E. All of the items can spontaneously generate an action potential 35. E. fibrous cardiac skeleton 36. D. all of these are possible 37. A. the sinoatrial (SA) node of the heart act as the pacemaker. 38. E. Both the QRS complex results from depolarization of the ventricles and the T wave

represents repolarization of the ventricles are both correct (B and C) 39. A. damage to the SA node 40. E. all of the items are possible 41. A. occurs between the first and second heart sounds 42. A. The volume of blood pumped per minute

P

Q

R

S

T

U

43. B. The volume of blood pumped each beat 44. E. AV (atrioventricular). Alves close

45. 5, 2, 11, 4, 12, 8, 7, 14, 9, 1, 10, 3, 13, 6

5) superior and inferior vena cava 2) left atrium 11) Tricuspid valve 4) Left ventricle 12) Pulmonary semilunar valve 8) Pulmonary trunk 7) Pulmonary artery 14) Lungs 9) Pulmonary veins 1) Right atrium 10) mitral/Bicuspid valve 3) Right ventricle 13) Aortic semilunar valve 6) Aortic arch

46. 3, 2, 4, 5, 1

3) SA node (sinoatrial node) 2) AV node (atrioventricular node) 4) Atrioventricular bundle (Bundle of His) 5) Bundle branches 1) Purkinje fibers

47. Generate blood pressure Route blood Ensuring one-way blood flow Regulating blood supply

1.