Chapter 15 Quiz Questions

53) During the isovolumetric contraction phase of ventricular systole, the A) atria are contracting and the ventricles are relaxing. B) atrioventricular valves and semilunar valves are closed. C) blood is ejected into the great vessels. D) all of the above E) none of the above

B) atrioventricular valves and semilunar valves are closed.

58) When the left ventricle contracts, the distance from the apex to the base A) increases. B) decreases. C) remains unchanged.

B) decreases.

28) As blood leaves the right ventricle it passes through the ________ and then into the pulmonary trunk. A) pulmonary veins B) pulmonary valve C) aorta D) inferior vena cava E) superior vena cava

B) pulmonary valve

38) Which chamber receives oxygenated blood from the pulmonary circuit? A) 5 B) 10 C) 16 D) 13 E) both 5 and 16

C) 16

50) Complications related to arteriosclerosis account for roughly ________ percent of deaths in the United States. A) 30 B) 60 C) 20 D) 50 E) 25

D) 50

16) The ________ deliver(s) blood to the myocardium. A) right coronary artery B) right coronary vein C) superior vena cava D) left coronary artery E) right coronary artery and left coronary artery

E) right coronary artery and left coronary artery

56) Which of the following is greater during left ventricular systole? A) the peak pressure in the ventricle. B) the peak pressure in the aorta. C) Neither is greater.

A) the peak pressure in the ventricle

32) The pulmonary arteries carry blood to the A) heart. B) lungs. C) brain. D) intestines. E) liver.

B) lungs.

47) When the semilunar valves close, the AV valves then A) close. B) open. C) make the third heart sound. D) all of the above E) none of the above

B) open.

18) Coronary veins empty into the A) left atrium. B) left ventricle. C) right atrium. D) right ventricle. E) conus arteriosus.

C) right atrium.

11) Blood is supplied to the myocardium by A) the coronary sinus. B) contact with blood in the pumping chambers. C) the coronary arteries. D) arteries that branch from the pulmonary arteries. E) none of the above

C) the coronary arteries.

33) The pulmonary veins carry blood to the A) heart. B) lungs. C) brain. D) intestines. E) liver.

A) heart.

30) Compared to the right ventricle, the left ventricle has all the following characteristics, except that it A) has a thicker wall. B) is round in cross section. C) pumps a greater volume. D) contracts harder. E) produces about four to six times more pressure when it contracts.

C) pumps a greater volume.

27) Blood flowing into the heart from the venae cavae flows next through the ________ valve. A) mitral B) bicuspid C) tricuspid D) pulmonary semilunar E) aortic semilunar

C) tricuspid

36) Identify the structure labeled "6." A) cusp of tricuspid valve B) pulmonary semilunar valve C) aortic semilunar valve D) bicuspid valve E) ligamentum arteriosum

A) cusp of tricuspid valve

21) The atrioventricular valves permit blood flow A) in one direction only. B) in both directions. C) in many directions. D) in opposite directions on the right and left. E) none of the above

A) in one direction only.

41) The ________ ventricle has a greater workload than the ________. A) left; right ventricle B) right; left ventricle C) right; systemic circulation D) all of the above E) none of the above

A) left; right ventricle

8) The coronary sulcus is a groove that A) marks the border between the atria and ventricles. B) marks the boundary line between the right and left ventricles. C) marks the boundary line between the right and left atria. D) separates the atrioventricular valves from the atria. E) separates the coronary arteries from the coronary veins.

A) marks the border between the atria and ventricles.

48) If a patient's tricuspid valve was leaking during systole, what would happen? A) regurgitation into the right atrium B) regurgitation into the superior vena cava C) regurgitation into the left atrium D) all of the above E) none of the above

A) regurgitation into the right atrium

9) There are ________ pulmonary veins. A) 2 B) 4 C) 6 D) 8 E) 10

B) 4

15) The great and middle cardiac veins drain blood into the A) superior vena cava. B) inferior vena cava. C) coronary sinus. D) coronary sulcus. E) aorta.

C) coronary sinus.

17) Blood is supplied to the left atrium by the A) brachiocephalic artery. B) right coronary artery. C) left coronary artery. D) phrenic arteries. E) pulmonary arteries.

C) left coronary artery.

4) In the middle of the thoracic cavity is a region occupied by the heart, great vessels, thymus, esophagus, and trachea called the A) pleural space. B) pericardial space. C) mediastinum. D) cardiac notch. E) ventral cavity.

C) mediastinum.

35) Identify the structure labeled "8." A) moderator band B) pectinate muscles C) papillary muscles D) trabeculae carneae E) chordae tendineae

C) papillary muscles

1) Most of the middle layer in the heart wall is composed of A) cardiac muscle cells. B) chondrocytes. C) epitheliocytes. D) fibrocytes. E) smooth muscle cells.

A) cardiac muscle cells.

6) The term used to describe fluid collecting in the pericardial cavity that restricts the movement of the heart is known as A) cardiac tamponade. B) mitral valve prolapse. C) pleural effusion. D) cardiomyopathy. E) pericarditis.

A) cardiac tamponade.

24) The right ventricle pumps blood to the A) right and left lungs. B) left ventricle. C) left atrium. D) aorta. E) right atrium.

A) right and left lungs.

19) Blood returning to the heart from the systemic circuit first enters the A) right atrium. B) right ventricle. C) left atrium. D) left ventricle. E) conus arteriosus.

A) right atrium.

13) The marginal branch and posterior interventricular branch are branches of the A) right coronary artery. B) left coronary artery. C) circumflex artery. D) coronary sinus. E) aorta.

A) right coronary artery.

52) The first heart sound is heard when the A) AV valves open. B) AV valves close. C) semilunar valves close. D) atria contract. E) blood enters the aorta.

B) AV valves close.

12) The first blood vessels to branch from the aorta are the ________ arteries. A) pulmonary B) coronary C) circumflex D) carotid E) subclavian

B) coronary

59) When the left ventricle contracts, the diameter of the ventricular chamber A) increases. B) decreases. C) remains the same.

B) decreases.

54) The first heart sound ("lubb") A) is associated with atrial systole. B) is associated with closing of the mitral valve. C) is associated with opening of the mitral valve. D) is associated with closing of the aortic valve. E) is associated with opening of the aortic valve.

B) is associated with closing of the mitral valve.

14) The circumflex branch and the anterior interventricular artery are branches of the A) right coronary artery. B) left coronary artery. C) interventricular artery. D) coronary sinus. E) aorta.

B) left coronary artery.

34) Identify the structure labeled "19." A) tricuspid valve B) pulmonary semilunar valve C) aortic semilunar valve D) bicuspid valve E) ligamentum arteriosum

B) pulmonary semilunar valve

22) Blood leaves the right ventricle by passing through the A) aortic valve. B) pulmonary valve. C) mitral valve. D) tricuspid valve. E) bicuspid valve.

B) pulmonary valve.

31) The following is a list of vessels and structures that are associated with the heart. 1. right atrium 2. left atrium 3. right ventricle 4. left ventricle 5. venae cavae 6. aorta 7. pulmonary trunk 8. pulmonary veins What is the correct order for the flow of blood entering from the systemic circulation? A) 1, 2, 7, 8, 3, 4, 6, 5 B) 1, 7, 3, 8, 2, 4, 6, 5 C) 5, 1, 3, 7, 8, 2, 4, 6 D) 5, 3, 1, 7, 8, 4, 2, 6 E) 5, 1, 3, 8, 7, 2, 4, 6

C) 5, 1, 3, 7, 8, 2, 4, 6

61) During ventricular systole, the A) atria are contracting. B) blood is entering the ventricles. C) AV valves are closed. D) pressure in the ventricles remains constant. E) pressure in the aorta remains constant.

C) AV valves are closed.

2) Which of the following descriptions matches the term near the left fifth intercostal space? A) pericardial cavity B) visceral pericardium C) apex of heart D) aorta E) right atrium

C) apex of heart

45) The ________ valve prevents backward flow into the left atrium. A) semicaval B) semilunar C) bicuspid D) tricuspid E) pulmonic

C) bicuspid

23) The cusps (leaflets) of atrioventricular valves attach directly to A) papillary muscles. B) trabeculae carneae. C) chordae tendineae. D) interatrial septa. E) coronary sulci.

C) chordae tendineae.

5) The visceral pericardium is the same as the A) mediastinum. B) parietal pericardium. C) epicardium. D) myocardium. E) endocardium.

C) epicardium.

20) Blood returning to the heart from the pulmonary circuit first enters the A) right atrium. B) right ventricle. C) left atrium. D) left ventricle. E) conus arteriosus.

C) left atrium.

10) The interventricular sulci and coronary sulcus contain A) fat. B) arteries. C) veins. D) all of the above E) none of the above

D) all of the above

26) The right atrium receives blood from the A) coronary sinus. B) superior vena cava. C) inferior vena cava. D) all of the above E) none of the above

D) all of the above

3) Intercalated discs serve to transfer ________ from cell to cell. A) ionic currents B) action potentials C) the force of contraction D) all of the above E) none of the above

D) all of the above

40) The wall of the left ventricle is thicker than the right because A) the left ventricle does more work than the right ventricle. B) the left ventricle pumps against greater resistance than the right ventricle. C) the left ventricle produces a higher pressure than the right. D) all of the above E) none of the above

D) all of the above

51) Arteriosclerosis can lead to A) hypertension. B) stroke. C) coronary artery disease. D) all of the above E) none of the above

D) all of the above

57) The mitral valve closes A) when left ventricular pressure exceeds left atrial pressure. B) at the beginning of ventricular systole. C) at the same time at the tricuspid valve. D) all of the above. E) none of the above.

D) all of the above

25) The left ventricle pumps blood to the A) lungs. B) right ventricle. C) right atrium. D) aorta. E) pulmonary circuit.

D) aorta.

7) The earlike extension of the atrium is the A) ventricle. B) coronary sinus. C) coronary sulcus. D) auricle. E) atricle.

D) auricle.

37) Identify the structure labeled "21." A) bicuspid valve B) pulmonary semilunar valve C) aortic semilunar valve D) ligamentum arteriosum E) tricuspid valve

D) ligamentum arteriosum

42) Contractions of the papillary muscles A) close the atrioventricular valves. B) close the semilunar valves. C) eject blood from the ventricles. D) prevent the atrioventricular valves from reversing into the atria. E) eject blood from the atria into the ventricles.

D) prevent the atrioventricular valves from reversing into the atria.

43) The pulmonary semilunar valve prevents backward flow into the A) aorta. B) pulmonary trunk. C) pulmonary veins. D) right ventricle. E) left atrium.

D) right ventricle.

55) The phase in the cardiac cycle when the mitral valve is closed and the aortic valve is open is the A) atrial systole. B) early diastolic filling phase. C) late diastolic filling phase. D) ventricular ejection of ventricular systole. E) dicrotic phase.

D) ventricular ejection of ventricular systole.

60) ________ is to contraction as ________ is to relaxation. A) Systole; diastole B) Diastole; systole C) Filling; relaxing D) Ejection; filling E) Systole; diastole or Ejection; filling

E) Systole; diastole or Ejection; filling

46) Rupture of the papillary muscles in the left ventricle may result in A) mitral regurgitation. B) mitral valve prolapse. C) bicuspid regurgitation. D) bicuspid prolapse. E) all of the above

E) all of the above

44) The bicuspid or mitral valve is located A) in the opening of the aorta. B) in the opening of the pulmonary trunk. C) where the venae cavae join the right atrium. D) between the right atrium and right ventricle. E) between the left atrium and left ventricle.

E) between the left atrium and left ventricle.

29) The function of the atrium is to A) collect blood. B) pump blood to the lungs. C) pump blood into the systemic circuit. D) pump blood to the ventricle. E) collect blood and pump blood to the ventricle.

E) collect blood and pump blood to the ventricle.

49) David suffers from a prolapsed mitral valve. This condition would cause A) increased effort by the right ventricle. B) increased effort by the left ventricle. C) regurgitation. D) increased effort by the right ventricle and regurgitation. E) increased effort by the left ventricle and regurgitation.

E) increased effort by the left ventricle and regurgitation.

39) The foramen ovale in the fetal heart is located in the A) right atrium. B) left atrium. C) right ventricle. D) left ventricle. E) interatrial septum.

E) interatrial septum.