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Chapter 20 - The Cardiovascular System: The Heart

46 Questions  I  By Larainahailey
Chapter 20 - The Cardiovascular System: The Heart
Chapter 20 self quiz questions from Wiley book

  
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1.  Inner visceral layer of the pericardium; adheres tightly to the surface of the heart.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
2.  Represents the onset of ventricular depolarization.Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
3.  Which of the following would not increase stroke volume? 
A.
B.
C.
D.
E.
4.  Which of the following are true concerning action potentials and contraction in the myocardium?  (1) The refractory period in a cardiac muscle fiber is very brief.  (2) The binding of Ca2 to troponin allows the interaction of actin and myosin filaments, resulting in contraction.  (3) Repolarization occurs when the voltage-gated K+ channels open and calcium channels are closing.  (4) Opening of voltage-gated fast Na+ channels results in depolarization. (5) Opening of voltage-gated slow Ca2 channels results in a period of maintained depolarization, known as the plateau.
A.
B.
C.
D.
E.
5.  The phase of heart contraction is called _______ and the phase of relaxation is called _____.
A.
B.
6.  Pumps oxygenated blood to all body cells, except the air sacs of the lungs.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
7.  Amount of blood ejected per beat by each ventricle.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
8.  The external boundary between the atria and ventricles is the _____________.
A.
B.
C.
D.
E.
9.  Pumps deoxygenated blood to lungs for oxygenation.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
10.  Cardiac muscle tissue.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
11.  Represents the conduction time from the beginning of atrial excitation to the beginning of ventricular excitation.Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
12.  The chamber of the heart with the thickest myocardium is the ________.
A.
B.
C.
D.
13.  Which of the following is the correct route of blood through the heart from the systemic circulation to the pulmonary circulation and back to the systemic circulation?
A.
B.
C.
D.
E.
14.  The gap junction and desmosome connections between individual cardiac muscle fibers.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
15.  Prevents backflow of blood from the right ventricle into the right atrium.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
16.  Internal wall dividing the chambers of the heart.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
17.  Endothelial cells lining the interior of the heart; are continuous with the endothelium of blood vessels.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
18.  The Frank-Starling law of the the heart equalizes the output of the right and left ventricles and keeps the same volume of blood flowing to both the systemic and pulmonary circulation.
A.
B.
19.  Collects oxygenated blood from the pulmonary circulation.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
20.  Which of the following are true?  (1) ANS regulation of heart rate originates in the cardiovascular center of the medulla oblongata. (2) Proprioceptor input is a major stimulus that accounts for the rapid rise in heart rate at the onset of physical activity.  (3) The vagus nerve releases norepinephrine, causing the heart rate to increase.  (4) Hormones from the adrenal medulla and the thyroid gland can increase the heart rate.  (5) Hypothermia increases the heart rate.
A.
B.
C.
D.
E.
21.  Ridges formed by raised bundles of cardiac muscle fibers.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
22.  In auscultation, the lubb represents closing of the semilunar valves and the dubb represents closing of the atrioventricular valves.
A.
B.
23.  Represents the time from the beginning of ventricular depolarization to the end of ventricular repolarization.Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
24.  Their contraction pulls on & tightens the chordae tendineae, preventing the valve cusps from everting.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
25.  Collects deoxygenated blood from the systemic circulation.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
26.  The superficial dense irregular connective tissue covering the heart.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
27.  The remnant of the foramen ovale, an opening in the interatrial septum of the fetal heart.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
28.  Period of time when cardiac muscle fibers are contracting & exerting force but not shortening.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
29.  Outer layer of the serous pericardium; is fused to the fibrous pericardium.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
30.  Amount of blood contained in the ventricles at the end of ventricular relaxation.  Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
31.  Left atrioventricular valve.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
32.  Which of the following represents the correct pathway for conduction of an action potential through the heart?
A.
B.
C.
D.
E.
33.  Increase blood-holding capacity of the atria.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
34.  Period of time when all four valves are closed and ventricular blood volume does not change.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
35.  Tendon-like cords connected to the atrioventricular valve cusps which, along with the papillary muscles, prevent valve eversion.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
36.  A softball player is found to have a resting cardiac output of 5.0 liters per minute and a heart rate of 50 beats per minute.  What is her stroke volume?
A.
B.
C.
D.
E.
37.  Prevent backflow of blood from the arteries into the ventricles.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
38.  Separate the upper and lower heart chambers, preventing backflow of blood from the ventricles back into the atria.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
39.  Amount of blood remaining in the ventricles following ventricular contraction.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
40.  Period of time when semilunar valves are open and blood flows out of the ventricles.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
41.  Difference between a person's maximum cardiac output and cardiac output at rest.Enter 1-7 without spaces/parenthesis. For multiple responses, enter #,#.  (1) cardiac reserve; (2) stroke volume; (3) end-diastolic volume EDV; (4) isovolumetric relaxation; (5) end-systolic volume ESV; (6) ventricular ejection; (7) isovolumetric contraction
42.  Represents atrial depolarization.Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
43.  Grooves on the surface of the heart which delineate the external boundaries between the chambers.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
44.  Blood vessels that pierce the heart muscle and supply blood to the cardiac muscle fibers.Enter 1-22 without spaces/parenthesis. (1) right atrium; (2) right ventricle; (3) left atrium; (4) left ventricle; (5) tricuspid valve; (6) bicuspid (mitral) valve; (7) chordae tendinae; (8) auricles; (9) papillary muscles; (10) trabeculae carnae; (11) fibrous pericardium; (12) parietal pericardium; (13) epicardium; (14) myocardium; (15) endocardium; (16) atrioventricular valves; (17) semilunar valves; (18) intercalcalated discs; (19) sulci; (20) septum; (21) fossa ovalis; (22) coronary circulation
45.  Indicates ventricular repolarization.  Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
46.  Represents the time when the ventricular contractile fibers are fully depolarized; occurs during the plateau phase of the action potential.Enter 1-6 without spaces/parenthesis. (1) P wave; (2) QRS complex; (3) T wave; (4) P-Q interval; (5) S-T segment; (6) Q-T interval
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