Question 1

Atrial natriuretic peptide is a hormone that

Accepted Answer

A)   is released from certain muscle cells of the heart.
B)   inhibits the release of renin and aldosterone.
C)   lowers blood pressure.
D)   all of the above.

Question 2

The external carotid arteries branch to structures in the

Accepted Answer

A)   scalp.
B)   face.
C)   base of the skull.
D)   all of the above.

Question 3

Bruce has colorectal cancer that has spread to his lymphatic system. He is given a drug that is an angiogenesis inhibitor. The drug works by

Accepted Answer

A)   stimulating new blood vessels to serve tissue damaged by the cancer.
B)   starving tumors by cutting off their blood supplies.
C)   halting cell division only in tumor cells.
D)   cutting off the supply of ATP to cancer cells.

Question 4

The skeleton of the heart consists of

Accepted Answer

A)   bone within the myocardium.
B)   bone within the interatrial septum.
C)   fibrous connective tissue in the endocardium.
D)   fibrous connective tissue encircling the atrioventricular orifices.

Question 5

Blood from the face and scalp is drained by the

Accepted Answer

A)   external jugular vein.
B)   subclavian vein.
C)   superior vena cava.
D)   cephalic vein.

Question 6

Water and dissolved substances leave the arteriole end of a capillary due to ____, and enter the venule end of a capillary due to ______.

Accepted Answer

A)   hydrostatic pressure being higher than osmotic pressure; active transport being greater than osmotic pressure
B)   osmotic pressure being higher than hydrostatic pressure; hydrostatic pressure being higher than osmotic pressure
C)   hydrostatic pressure being higher than osmotic pressure; osmotic pressure being higher than hydrostatic pressure
D)   osmosis; active transport

Question 7

Once cells in the SA node reach threshold,

Accepted Answer

A)   an action potential is triggered.
B)   a heart attack occurs.
C)   nothing happens until the AV node is innervated.
D)   the heart stops beating.

Question 8

Impulses that the vagus nerve carries to the heart

Accepted Answer

A)   are parasympathetic and increase heart rate.
B)   are parasympathetic and decrease heart rate.
C)   are sympathetic and increase heart rate.
D)   are sympathetic and decrease heart rate.

Question 9

A left ventricular assist device

Accepted Answer

A)   is routinely used in people who have had heart attacks.
B)   can substitute for the atria.
C)   can maintain cardiac function until a donor heart becomes available.
D)   is an implantable replacement heart. C

Question 10

Which of the following is due to an aging cardiovascular system?

Accepted Answer

A)   The tunica interna thickens.
B)   The direction of blood flow in some capillaries reverses.
C)   Arteries become less rigid.
D)   Veins lose collagen. A

Question 11

When the ventricular walls contract,

Accepted Answer

A)   the mitral valve opens and the tricuspid valve closes.
B)   the tricuspid valve opens and the mitral valve closes.
C)   the mitral and tricuspid valves close.
D)   the mitral and tricuspid valves open.

Question 12

Cardiac output is calculated by multiplying the stroke volume by the systolic blood pressure.

Accepted Answer

A) True 
 B)False  False

Question 13

Plasma proteins in capillaries help to

Accepted Answer

A)   maintain the osmotic pressure of the blood.
B)   decrease the osmotic pressure of the blood.
C)   maintain the hydrostatic pressure of the blood.
D)   decrease the hydrostatic pressure of the blood.

Question 14

The great saphenous vein is the longest vein in the body.

Accepted Answer

A) True 
 B)False

Question 15

An abnormally slow heart rate is termed

Accepted Answer

A)   tachycardia.
B)   bradycardia.
C)   fibrillation.
D)   cardioversion.

Question 16

Sudden cardiac arrest can result from

Accepted Answer

A)   an artery blocked with plaque.
B)   scar tissue from a previous heart attack.
C)   accelerated heart rate.
D)   all of the above.

Question 17

The aorta is the largest artery in the pulmonary circuit.

Accepted Answer

A) True 
 B)False

Question 18

The structures that contain chemoreceptors that detect blood levels of oxygen and carbon dioxide are the

Accepted Answer

A)   aortic bodies.
B)   aortic sinuses.
C)   aortic branches.
D)   capillary buds.

Question 19

Which of the following is not a factor that increases risk of developing atherosclerosis?

Accepted Answer

A)   A diet high in unsaturated fats
B)   Tobacco smoking
C)   Lack of physical exercise
D)   Low blood pressure

Question 20

Which of the following gases does endothelium release?

Accepted Answer

A)   Nitric oxide
B)   Oxygen
C)   Nitrogen
D)   Methane

Exam 15: Cardiovascular System

Atrial natriuretic peptide is a hormone that

Correct AnswerverifiedShow Answer

The external carotid arteries branch to structures in the

Correct AnswerverifiedShow Answer

Bruce has colorectal cancer that has spread to his lymphatic system. He is given a drug that is an angiogenesis inhibitor. The drug works by

Correct AnswerverifiedShow Answer

The skeleton of the heart consists of

Correct AnswerverifiedShow Answer

Blood from the face and scalp is drained by the

Correct AnswerverifiedShow Answer

Water and dissolved substances leave the arteriole end of a capillary due to ____, and enter the venule end of a capillary due to ______.

Correct AnswerverifiedShow Answer

Once cells in the SA node reach threshold,

Correct AnswerverifiedShow Answer

Impulses that the vagus nerve carries to the heart

Correct AnswerverifiedShow Answer

A left ventricular assist device

Correct AnswerverifiedC

Which of the following is due to an aging cardiovascular system?

Correct AnswerverifiedA

When the ventricular walls contract,

Correct AnswerverifiedShow Answer

Cardiac output is calculated by multiplying the stroke volume by the systolic blood pressure.

Correct AnswerverifiedFalse

Plasma proteins in capillaries help to

Correct AnswerverifiedShow Answer

The great saphenous vein is the longest vein in the body.

Correct AnswerverifiedShow Answer

An abnormally slow heart rate is termed

Correct AnswerverifiedShow Answer

Sudden cardiac arrest can result from

Correct AnswerverifiedShow Answer

The aorta is the largest artery in the pulmonary circuit.

Correct AnswerverifiedShow Answer

The structures that contain chemoreceptors that detect blood levels of oxygen and carbon dioxide are the

Correct AnswerverifiedShow Answer

Which of the following is not a factor that increases risk of developing atherosclerosis?

Correct AnswerverifiedShow Answer

Which of the following gases does endothelium release?

Correct AnswerverifiedShow Answer

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Water and dissolved substances leave the arteriole end of a capillary due to , and enter the venule end of a capillary due to __.

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C

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A

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False

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