Question 1

What ion is necessary for the clotting process?

Accepted Answer

A)  Na+
B)  K+
C)  Ca2+
D)  Mg2+E) B) and D)
F) B) and C)

Question 2

The final protein that forms a blood clot is

Accepted Answer

A)  fibrin.
B)  thrombin.
C)  thromboplastin.
D)  plasmin.E) None of the above
F) A) and D)

Question 3

Damage to heart valves by antibodies in response to streptococcus bacteria is called

Accepted Answer

A)  rheumatic endocarditis.
B)  mitral stenosis.
C)  erythroblastosis fetalis.
D)  patent ductus arteriosus.E) None of the above
F) B) and C)

Question 4

Erythroblastosis fetalis occurs when

Accepted Answer

A)  the mother has blood type A and the fetus has blood type O.
B)  the mother has Rh+ blood and the fetus has Rh- blood.
C)  the mother has Rh- blood and the fetus has Rh+ blood.
D)  the mother has type AB blood and the fetus has type O blooD.E) A) and C)
F) A) and B)

Question 5

What protein regulates iron homeostasis?

Accepted Answer

A)  hepcidin
B)  ferritin
C)  cytokine
D)  multipotent growth factor-1E) All of the above
F) A) and D)

Question 6

The T wave of the ECG represents atrial repolarization.

Accepted Answer

A) True 
 B)False

Question 7

Mary has type AB blood.Which type of antibodies are present in her plasma?

Accepted Answer

A)  anti-A
B)  anti-B
C)  anti-A and anti-B
D)  Neither anti-A nor anti-BE) B) and C)
F) None of the above

Question 8

Prostacyclin,PGI2,prevents

Accepted Answer

A)  vasodilation.
B)  platelet aggregation.
C)  vasoconstriction.
D)  clot retraction.E) None of the above
F) A) and B)

Question 9

The platelet release reaction is initiated by platelets binding to exposed collagen in a broken membrane.

Accepted Answer

A) True 
 B)False

Question 10

An ECG lacking a T wave would occur if the sinoatrial node were not functioning.

Accepted Answer

A) True 
 B)False

Question 11

Valves are said to be _______ when they do not close properly and blood leaks through them.

Accepted Answer

A)  stenotic
B)  weak
C)  incompetent
D)  flappyE) None of the above
F) All of the above

Question 12

The capillaries' function is exchange of gases,nutrients,and wastes with the tissues.

Accepted Answer

A) True 
 B)False

Question 13

Interstitial fluid is derived from

Accepted Answer

A)  lymph.
B)  cells.
C)  plasma.
D)  formed elements.E) B) and D)
F) A) and B)

Question 14

Which of the following is NOT true of venous blood?

Accepted Answer

A)  moves toward the heart
B)  always has lower oxygen content
C)  is a dark red color
D)  All applyE) A) and D)
F) None of the above

Question 15

The ventricles completely empty when they contract in systole.

Accepted Answer

A) True 
 B)False

Question 16

Varicose veins can be caused by

Accepted Answer

A)  compression of abdominal veins by a fetus during pregnancy.
B)  stretched venous valves.
C)  excessive venous congestion.
D)  All applyE) All of the above
F) B) and C)

Question 17

How does hepcidin function in iron homeostasis?

Accepted Answer

A)  increases production of transferrin
B)  promotes cellular storage of iron by removing ferroportin channels in enterocytes
C)  promotes production and insertion of ferroportin channels in enterocytes
D)  increases macrophage destruction of old red blood cells to release ironE) None of the above
F) A) and B)

Question 18

Heart murmurs may be caused by _______,a condition in which valves are thickened and calcified.

Accepted Answer

A)  stenosis
B)  fibrillation
C)  regurgitation
D)  septal defectE) A) and C)
F) B) and D)

Question 19

Having no nucleus,a biconcave shape,and the function of gas transport would describe a

Accepted Answer

A)  red blood cell.
B)  platelet.
C)  white blood cell.
D)  albumin.E) A) and D)
F) A) and C)

Question 20

Oxidation of low-density lipoproteins causes

Accepted Answer

A)  fatty streak appearance.
B)  increased hepatic uptake of fats.
C)  monocyte conversion.
D)  increased LDL receptor synthesis.E) A) and B)
F) B) and C)

Exam 13: Blood,heart and Circulation

The ventricles completely empty when they contract in systole.

Correct AnswerverifiedShow Answer

The capillaries' function is exchange of gases,nutrients,and wastes with the tissues.

Correct AnswerverifiedShow Answer

An ECG lacking a T wave would occur if the sinoatrial node were not functioning.

Correct AnswerverifiedShow Answer

Erythroblastosis fetalis occurs when

Correct AnswerverifiedShow Answer

The T wave of the ECG represents atrial repolarization.

Correct AnswerverifiedShow Answer

Prostacyclin,PGI2,prevents

Correct AnswerverifiedShow Answer

Oxidation of low-density lipoproteins causes

Correct AnswerverifiedShow Answer

What protein regulates iron homeostasis?

Correct AnswerverifiedShow Answer

Which of the following is NOT true of venous blood?

Correct AnswerverifiedShow Answer

Heart murmurs may be caused by _______,a condition in which valves are thickened and calcified.

Correct AnswerverifiedShow Answer

The platelet release reaction is initiated by platelets binding to exposed collagen in a broken membrane.

Correct AnswerverifiedShow Answer

The final protein that forms a blood clot is

Correct AnswerverifiedShow Answer

Mary has type AB blood.Which type of antibodies are present in her plasma?

Correct AnswerverifiedShow Answer

Interstitial fluid is derived from

Correct AnswerverifiedShow Answer

Valves are said to be _______ when they do not close properly and blood leaks through them.

Correct AnswerverifiedShow Answer

Having no nucleus,a biconcave shape,and the function of gas transport would describe a

Correct AnswerverifiedShow Answer

Varicose veins can be caused by

Correct AnswerverifiedShow Answer

How does hepcidin function in iron homeostasis?

Correct AnswerverifiedShow Answer

What ion is necessary for the clotting process?

Correct AnswerverifiedShow Answer

Damage to heart valves by antibodies in response to streptococcus bacteria is called

Correct AnswerverifiedShow Answer

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Prostacyclin,PGI₂,prevents

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