Question 1

Sympathetic stimulation increases

Accepted Answer

A)   end-diastolic volume.
B)   stroke volume.
C)   end-systolic volume.
D)   blood vessel volume.E) A) and B)
F) None of the above

Question 2

Pulse pressure is calculated by

Accepted Answer

A)   adding systolic and diastolic pressures.
B)   multiplying systolic and diastolic pressures.
C)   subtracting systolic pressure from diastolic pressure.
D)   subtracting diastolic pressure from systolic pressure.E) B) and C)
F) A) and B)

Question 3

Arteries are strong, elastic vessels that carry blood to the heart.

Accepted Answer

A) True 
 B)False

Question 4

The effect on the heart of excess potassium ion concentration usually is

Accepted Answer

A)   increased rate and increased force of contraction.
B)   decreased rate and increased force of contraction.
C)   decreased rate and decreased force of contraction.
D)   increased rate and decreased force of contraction.E) A) and D)
F) A) and C)

Question 5

A sphygmomanometer measures

Accepted Answer

A)   clotting time.
B)   blood pressure.
C)   hematocrit.
D)   brain function.E) A) and B)
F) B) and C)

Question 6

Circulation is vital because it

Accepted Answer

A)   supplies oxygen and nutrients to and removes wastes from tissues.
B)   inflates the lungs.
C)   delivers carbon dioxide to tissues and removes excess oxygen.
D)   delivers wastes to tissues.E) B) and D)
F) All of the above

Question 7

Cells of the conducting system in the heart are more sensitive to which ion?

Accepted Answer

A)   Sodium
B)   Iron
C)   Potassium
D)   ChlorideE) C) and D)
F) A) and B)

Question 8

Kidney disease can cause hypertension by

Accepted Answer

A)   activating the renin-angiotensin mechanism.
B)   stimulating the secretion of aldosterone.
C)   increasing retention of sodium and water.
D)   all of the above.E) B) and C)
F) A) and B)

Question 9

The loose-fitting sac around the heart is the

Accepted Answer

A)   fibrous pericardium.
B)   visceral pericardium.
C)   epicardium.
D)   endocardium.E) A) and C)
F) All of the above

Question 10

Venules continue from capillaries to form veins, which return blood to the atria.

Accepted Answer

A) True 
 B)False

Question 11

Capillary walls consist of a single layer of epithelial cells, and they exchange substances in the blood for substances in the tissue fluid surrounding body cells.

Accepted Answer

A) True 
 B)False

Question 12

The visceral pericardium lines the pericardial cavity, whereas the parietal pericardium covers the surface of the heart.

Accepted Answer

A) True 
 B)False

Question 13

In an ECG pattern, the PQ interval indicates how long it takes for the cardiac impulse to travel from the

Accepted Answer

A)   SA node to the atrial muscle fibers.
B)   SA node to the Purkinje fibers.
C)   AV node to the atrial muscle fibers.
D)   SA node through the AV node.E) A) and B)
F) B) and D)

Question 14

The distribution of blood in capillary pathways is largely controlled by the action of precapillary sphincters.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following might serve as a secondary pacemaker for the heart?

Accepted Answer

A)   AV node
B)   Purkinje fibers
C)   Both AV node and Purkinje fibers
D)   Neither AV node nor Purkinje fibersE) A) and C)
F) A) and B)

Question 16

The celiac artery provides blood to the

Accepted Answer

A)   diaphragm.
B)   large intestine.
C)   liver and spleen.
D)   adrenal glands.E) C) and D)
F) A) and B)

Question 17

The apical heartbeat is heard by listening between the fifth and sixth ribs about 7.5 cm left of the midline.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following waves of an ECG pattern is/are correctly described?

Accepted Answer

A)   P wave-depolarization of atria
B)   QRS complex-repolarization of ventricles
C)   T wave-depolarization of ventricles
D)   QRST complex-depolarization of ventriclesE) A) and B)
F) A) and C)

Question 19

Metarterioles connect arterioles and venules, and allow blood to bypass the capillaries.

Accepted Answer

A) True 
 B)False

Question 20

The pulmonary trunk divides into the right and left pulmonary arteries about __ centimeters above its origin.

Accepted Answer

A)   5
B)   8
C)   10
D)   12E) B) and C)
F) A) and D)

Exam 15: Cardiovascular System

A sphygmomanometer measures

Correct AnswerverifiedShow Answer

The visceral pericardium lines the pericardial cavity, whereas the parietal pericardium covers the surface of the heart.

Correct AnswerverifiedShow Answer

The distribution of blood in capillary pathways is largely controlled by the action of precapillary sphincters.

Correct AnswerverifiedShow Answer

Which of the following waves of an ECG pattern is/are correctly described?

Correct AnswerverifiedShow Answer

The loose-fitting sac around the heart is the

Correct AnswerverifiedShow Answer

The celiac artery provides blood to the

Correct AnswerverifiedShow Answer

Arteries are strong, elastic vessels that carry blood to the heart.

Correct AnswerverifiedShow Answer

Sympathetic stimulation increases

Correct AnswerverifiedShow Answer

Pulse pressure is calculated by

Correct AnswerverifiedShow Answer

Venules continue from capillaries to form veins, which return blood to the atria.

Correct AnswerverifiedShow Answer

Kidney disease can cause hypertension by

Correct AnswerverifiedShow Answer

The effect on the heart of excess potassium ion concentration usually is

Correct AnswerverifiedShow Answer

Which of the following might serve as a secondary pacemaker for the heart?

Correct AnswerverifiedShow Answer

Capillary walls consist of a single layer of epithelial cells, and they exchange substances in the blood for substances in the tissue fluid surrounding body cells.

Correct AnswerverifiedShow Answer

Cells of the conducting system in the heart are more sensitive to which ion?

Correct AnswerverifiedShow Answer

The apical heartbeat is heard by listening between the fifth and sixth ribs about 7.5 cm left of the midline.

Correct AnswerverifiedShow Answer

Circulation is vital because it

Correct AnswerverifiedShow Answer

The pulmonary trunk divides into the right and left pulmonary arteries about __ centimeters above its origin.

Correct AnswerverifiedShow Answer

In an ECG pattern, the PQ interval indicates how long it takes for the cardiac impulse to travel from the

Correct AnswerverifiedShow Answer

Metarterioles connect arterioles and venules, and allow blood to bypass the capillaries.

Correct AnswerverifiedShow Answer

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