Question 1

________________ innervation increases the rate and the force of heart contraction.

Accepted Answer

The answer of ________________ innervation increases the rate and the...

Question 2

It is the _____________ that permits the compression necessary to pump large volumes of blood out of the ventricles.

Accepted Answer

A)  negative pressure inside the ventricles
B)  absence of oxygenated blood in the atria
C)  arrangement of cardiac muscle in the heart wall
D)  presence of skeletal muscle tissue in the heart skeleton
E)  presence of papillary muscles in the ventriclesF) All of the above
G) D) and E)

Question 3

-In this figure showing an anterior view of the heart,number 7 depicts the

Accepted Answer

A)  aortic semilunar valve.
B)  right atrium.
C)  left ventricle.
D)  right atrioventricular valve.
E)  pulmonary semilunar valve.F) C) and D)
G) C) and E)

Question 4

The serous fluid within the pericardial cavity works to

Accepted Answer

A)  lubricate the membranes of the serous pericardium.
B)  slow the heart rate.
C)  equalize the pressure in the great vessels.
D)  eliminate blood pressure spikes.E) A) and B)
F) A) and C)

Question 5

The inferior,conical end of the heart is called the _______________.

Accepted Answer

The answer of The inferior,conical end of the heart is...

Question 6

The right border of the heart is supplied by the

Accepted Answer

A)  circumflex artery.
B)  posterior interventricular artery.
C)  anterior interventricular artery.
D)  right marginal artery.
E)  great cardiac vein.F) B) and D)
G) A) and C)

Question 7

Which analogy fits the human heart?

Accepted Answer

A)  It is like a single pump.
B)  It is like a double pump,each working side by side with the other.
C)  It is like four pumps working in alternating cycles.
D)  It is like a double pump,each working at its own rate determined by the needs of the body served.
E)  It is like a single pump whose various chambers all work together at once.F) A) and B)
G) None of the above

Question 8

The heartbeat is initiated by the cardiac muscle fibers of the _______________ node.

Accepted Answer

The answer of The heartbeat is initiated by the cardiac...

Question 9

During ventricular systole

Accepted Answer

A)  only the AV valves open.
B)  only the AV valves close.
C)  only the semilunar valves close.
D)  the semilunar valves close and the AV valves open.
E)  the semilunar valves open and the AV valves close.F) B) and C)
G) A) and B)

Question 10

The pulmonary arteries carry _______________ blood to the lungs.

Accepted Answer

The answer of The pulmonary arteries carry _______________ blood to...

Question 11

Pectinate muscles are found on the

Accepted Answer

A)  anterior wall of the right atrium.
B)  posterior wall of the right ventricle.
C)  anterior wall of the right ventricle.
D)  anterior wall of the right and left atria.
E)  posterior wall of the right and left ventricles.F) A) and B)
G) All of the above

Question 12

Which values are reasonable for a healthy,80 kilogram resting adult?

Accepted Answer

A)  5.25 liters of blood pumped per ventricle per minute;108,000 beats per day
B)  4.25 liters of blood pumped per ventricle per minute;60,000 beats per day
C)  6.75 liters of blood pumped per ventricle per minute;20,000 beats per day
D)  7.25 liters of blood pumped per ventricle per minute;76,000 beats per day
E)  5.75 liters of blood pumped per ventricle per minute;144,000 beats per dayF) C) and D)
G) B) and E)

Question 13

Because of the constant inflow of blood,the atria are thick-walled and located inferiorly in the heart.

Accepted Answer

A) True 
 B)False

Question 14

Cardiac muscle fibers

Accepted Answer

A)  contract as a single unit.
B)  are only loosely connected by the intercalated discs.
C)  have a low oxygen need.
D)  utilize hemoglobin as an energy source.E) A) and D)
F) C) and D)

Question 15

-In this figure showing an oblique section of the heart,number 3 depicts the

Accepted Answer

A)  wall of the left ventricle.
B)  wall of the right atrium.
C)  wall of the left atrium.
D)  wall of the right ventricle.
E)  left atrioventricular valve.F) A) and C)
G) A) and E)

Question 16

The internal wall surface of each ventricle displays large,smooth,irregular muscular ridges called

Accepted Answer

A)  conus arteriosus.
B)  atrioventricular opening.
C)  trabeculae carneae.
D)  chordae tendineae
E)  pectinate musclesF) All of the above
G) None of the above

Question 17

The relaxation phase of a heart chamber is termed ________________.

Accepted Answer

The answer of The relaxation phase of a heart chamber...

Question 18

The heart valves

Accepted Answer

A)  stabilize and hold the arteries leaving the heart.
B)  permit the passage of blood in one direction.
C)  separate the right and left sides of the heart.
D)  are only used in the fetal heart.
E)  direct the conduction impulse through the heart muscle.F) A) and E)
G) A) and B)

Question 19

The property that allows the heart to initiate each heartbeat itself is called __________________.

Accepted Answer

The answer of The property that allows the heart to...

Question 20

Which describes the endocardium?
A: Has single layer of epithelium
B: Has layer of areolar connective tissue
C: Epithelial cells are squamous
D: Epithelial cells are cuboidal
E: Has layer of adipose connective tissue
F: Has patches of myocardium

Accepted Answer

A)  a,b,c
B)  a,b,d
C)  a,d,e
D)  a,b,c,e
E)  a,e,fF) B) and D)
G) C) and E)

Exam 22: Heart

________________ innervation increases the rate and the force of heart contraction.

Correct AnswerverifiedShow Answer

The right border of the heart is supplied by the

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Because of the constant inflow of blood,the atria are thick-walled and located inferiorly in the heart.

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The pulmonary arteries carry _______________ blood to the lungs.

Correct AnswerverifiedShow Answer

During ventricular systole

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Pectinate muscles are found on the

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Which analogy fits the human heart?

Correct AnswerverifiedShow Answer

Which describes the endocardium? A: Has single layer of epithelium B: Has layer of areolar connective tissue C: Epithelial cells are squamous D: Epithelial cells are cuboidal E: Has layer of adipose connective tissue F: Has patches of myocardium

Correct AnswerverifiedShow Answer

The internal wall surface of each ventricle displays large,smooth,irregular muscular ridges called

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The property that allows the heart to initiate each heartbeat itself is called __________________.

Correct AnswerverifiedShow Answer

The heart valves

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The inferior,conical end of the heart is called the _______________.

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Cardiac muscle fibers

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Which values are reasonable for a healthy,80 kilogram resting adult?

Correct AnswerverifiedShow Answer

-In this figure showing an oblique section of the heart,number 3 depicts the

Correct AnswerverifiedShow Answer

-In this figure showing an anterior view of the heart,number 7 depicts the

Correct AnswerverifiedShow Answer

It is the _____________ that permits the compression necessary to pump large volumes of blood out of the ventricles.

Correct AnswerverifiedShow Answer

The relaxation phase of a heart chamber is termed ________________.

Correct AnswerverifiedShow Answer

The heartbeat is initiated by the cardiac muscle fibers of the _______________ node.

Correct AnswerverifiedShow Answer

The serous fluid within the pericardial cavity works to

Correct AnswerverifiedShow Answer

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