Question 1

Reduced levels of blood Ca2+

Accepted Answer

A)  increase heart rate but do not affect heart contraction strength.
B)  decrease both heart rate and contraction strength.
C)  decrease heart rate but do not affect heart contraction strength.
D)  increase both heart rate and contraction strength.E) A) and B)
F) None of the above

Question 2

The tricuspid valve prevents backflow of blood from the _________ into the _________.

Accepted Answer

A)  right ventricle; right atrium
B)  right atrium; right ventricle
C)  left ventricle; left atrium
D)  left atrium; left ventricleE) A) and D)
F) None of the above

Question 3

__________ play an important role in controlling blood flow and blood pressure.

Accepted Answer

A)  Veins
B)  Arteries and veins
C)  Capillaries
D)  ArteriesE) A) and B)
F) B) and D)

Question 4

The _______ pumps blood into the pulmonary trunk.

Accepted Answer

A)  right ventricle
B)  left ventricle
C)  right atrium
D)  left atriumE) A) and D)
F) A) and C)

Question 5

The left ventricle pumps ________ blood through the ________ valve.

Accepted Answer

A)  deoxygenated; pulmonary
B)  oxygenated; aortic
C)  oxygenated; pulmonary
D)  deoxygenated; aorticE) A) and B)
F) A) and C)

Question 6

The _________ receive(s)  blood from ________ and supply(supplies)  blood to the cardiac muscle tissue.

Accepted Answer

A)  coronary arteries; aorta
B)  coronary sinus; pulmonary arteries
C)  coronary sinus; aorta
D)  coronary arteries; pulmonary arteriesE) B) and D)
F) All of the above

Question 7

The membranous covering of the heart is the _______, which includes a loosely fitting pericardial sac composed of an inner _______ and an outer ________.

Accepted Answer

A)  pericardium; parietal layer of serous pericardium; fibrous pericardium
B)  epicardium; fibrous pericardium; parietal layer of serous pericardium
C)  epicardium; parietal layer of serous pericardium; fibrous pericardium
D)  endocardium; parietal layer of serous pericardium; epicardiumE) C) and D)
F) A) and D)

Question 8

The nerve impulses from the sympathetic neurons ___________, while the nerve impulses from the parasympathetic neurons ___________.

Accepted Answer

A)  increase heart rate and contraction strength; decrease heart rate and contraction strength
B)  increase heart rate but do not affect heart contraction strength; decrease heart rate but do not affect heart contraction strength
C)  decrease heart contraction and contraction strength; increase heart rate and contraction strength
D)  increase heart rate and contraction strength; decrease heart rate but do not affect heart contraction strengthE) A) and C)
F) A) and D)

Question 9

The first heart sound (lub)  results from the closing of the _________ valves in the beginning of __________.

Accepted Answer

A)  AV; ventricular diastole
B)  semilunar; ventricular systole
C)  semilunar; ventricular diastole
D)  AV; ventricular systoleE) A) and B)
F) None of the above

Question 10

The _______ pumps blood into the aorta.

Accepted Answer

A)  right atrium
B)  left ventricle
C)  right ventricle
D)  left atriumE) A) and B)
F) A) and C)

Question 11

The wall of capillaries consists of

Accepted Answer

A)  a layer of smooth muscle and an endothelium supported by a layer of areolar connective tissue.
B)  tunica externa, tunica media, and an endothelium supported by a layer of areolar connective tissue.
C)  an endothelium supported by a layer of areolar connective tissue.
D)  tunica externa and an endothelium supported by a layer of areolar connective tissue.E) All of the above
F) B) and D)

Question 12

Excess levels of blood K+

Accepted Answer

A)  increase heart rate but do not affect heart contraction strength.
B)  decrease both heart rate and contraction strength.
C)  increase both heart rate and contraction strength.
D)  decrease heart rate but do not affect heart contraction strength.E) A) and D)
F) A) and B)

Question 13

The right atrium passes ________ blood through the ________ valve to the right ventricle.

Accepted Answer

A)  oxygenated; tricuspid
B)  deoxygenated; tricuspid
C)  oxygenated; mitral
D)  deoxygenated; mitralE) B) and C)
F) A) and C)

Question 14

The three branches off of the aorta that supply blood to the upper limbs and head are the

Accepted Answer

A)  right common carotid artery, right subclavian artery, and brachiocephalic trunk.
B)  left common carotid artery, left subclavian artery, and brachiocephalic trunk.
C)  brachiocephalic trunk, right subclavian artery, and left subclavian artery.
D)  brachiocephalic trunk, right subclavian artery, and left common carotid artery.E) None of the above
F) All of the above

Question 15

____________ is a rapid heart rate in which the contractions are uncoordinated.

Accepted Answer

A)  Heart flutter
B)  Fibrillation
C)  Tachycardia
D)  BradycardiaE) A) and C)
F) B) and D)

Question 16

The artery carrying blood from the abdominal aorta to the distal part of the large intestine is the

Accepted Answer

A)  inferior mesenteric artery.
B)  celiac trunk.
C)  common iliac artery.
D)  superior mesenteric artery.E) All of the above
F) A) and B)

Question 17

The sequence of veins draining most of the blood from either side of the brain is

Accepted Answer

A)  external jugular vein  →\rightarrow→  common jugular vein  →\rightarrow→  superior vena cava  →\rightarrow→  right atrium
B)  internal jugular vein  →\rightarrow→  superior vena cava  →\rightarrow→  right atrium.
C)  internal jugular vein  →\rightarrow→  brachiocephalic vein  →\rightarrow→  superior vena cava --> right atrium.
D)  external jugular vein  →\rightarrow→  brachiocephalic vein  →\rightarrow→  superior vena cava  →\rightarrow→  right atrium. E) None of the above
F) All of the above

Question 18

When _____________, blood flows passively into the atria and then passively into the ventricles.

Accepted Answer

A)  both the atria and the ventricles contract
B)  the atria contract and the ventricles relax
C)  both the atria and the ventricles relax
D)  the atria relax and the ventricles contractE) B) and D)
F) A) and D)

Question 19

Valves are found in some

Accepted Answer

A)  capillaries.
B)  veins.
C)  arteries.
D)  arteries and veins.E) B) and D)
F) None of the above

Question 20

The mitral valve prevents backflow of blood from the _________ into the _________.

Accepted Answer

A)  left atrium; left ventricle
B)  right ventricle; right atrium
C)  right atrium; right ventricle
D)  left ventricle; left atriumE) All of the above
F) B) and D)

Exam 12: Heart and Blood Vessels

The mitral valve prevents backflow of blood from the _________ into the _________.

Correct AnswerverifiedShow Answer

Valves are found in some

Correct AnswerverifiedShow Answer

The membranous covering of the heart is the _______, which includes a loosely fitting pericardial sac composed of an inner _______ and an outer ________.

Correct AnswerverifiedShow Answer

____________ is a rapid heart rate in which the contractions are uncoordinated.

Correct AnswerverifiedShow Answer

The three branches off of the aorta that supply blood to the upper limbs and head are the

Correct AnswerverifiedShow Answer

The tricuspid valve prevents backflow of blood from the _________ into the _________.

Correct AnswerverifiedShow Answer

The sequence of veins draining most of the blood from either side of the brain is

Correct AnswerverifiedShow Answer

The _______ pumps blood into the pulmonary trunk.

Correct AnswerverifiedShow Answer

Reduced levels of blood Ca2+

Correct AnswerverifiedShow Answer

The _______ pumps blood into the aorta.

Correct AnswerverifiedShow Answer

The wall of capillaries consists of

Correct AnswerverifiedShow Answer

The nerve impulses from the sympathetic neurons ___________, while the nerve impulses from the parasympathetic neurons ___________.

Correct AnswerverifiedShow Answer

The right atrium passes ________ blood through the ________ valve to the right ventricle.

Correct AnswerverifiedShow Answer

__________ play an important role in controlling blood flow and blood pressure.

Correct AnswerverifiedShow Answer

When _____________, blood flows passively into the atria and then passively into the ventricles.

Correct AnswerverifiedShow Answer

Excess levels of blood K+

Correct AnswerverifiedShow Answer

The _________ receive(s) blood from ________ and supply(supplies) blood to the cardiac muscle tissue.

Correct AnswerverifiedShow Answer

The artery carrying blood from the abdominal aorta to the distal part of the large intestine is the

Correct AnswerverifiedShow Answer

The left ventricle pumps ________ blood through the ________ valve.

Correct AnswerverifiedShow Answer

The first heart sound (lub) results from the closing of the _________ valves in the beginning of __________.

Correct AnswerverifiedShow Answer

The mitral valve prevents backflow of blood from the _ into the _.

Correct Answer
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Correct Answer
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The membranous covering of the heart is the ___, which includes a loosely fitting pericardial sac composed of an inner _ and an outer ______.

Correct Answer
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Correct Answer
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Correct Answer
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The tricuspid valve prevents backflow of blood from the _ into the _.

Correct Answer
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Correct Answer
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Correct Answer
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Reduced levels of blood Ca²⁺

Correct Answer
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Correct Answer
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Correct Answer
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The nerve impulses from the sympathetic neurons _, while the nerve impulses from the parasympathetic neurons _.

Correct Answer
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The right atrium passes blood through the valve to the right ventricle.

Correct Answer
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Correct Answer
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Correct Answer
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Excess levels of blood K⁺

Correct Answer
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The _ receive(s) blood from and supply(supplies) blood to the cardiac muscle tissue.

Correct Answer
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Correct Answer
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The left ventricle pumps blood through the valve.

Correct Answer
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The first heart sound (lub) results from the closing of the _ valves in the beginning of __.

Correct Answer
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