Question 1

-In this figure showing an anterior view of the heart,what is depicted by number 7

Accepted Answer

A)  Aortic semilunar valve
B)  Right atrium
C)  Left ventricle
D)  Right atrioventricular valve
E)  Pulmonary semilunar valveF) A) and C)
G) None of the above

Question 2

Which heart chambers contain deoxygenated blood

Accepted Answer

A)  Left atrium and right atrium
B)  Left ventricle and right ventricle
C)  Right atrium and right ventricle
D)  Left atrium and left ventricle
E)  Right atrium and left ventricleF) A) and D)
G) D) and E)

Question 3

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

Accepted Answer

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

Question 4

Which circuit of the cardiovascular system includes the left ventricle and aorta

Accepted Answer

A)  Pulmonary circuit
B)  Cardio circuit
C)  Coronary circuit
D)  Systemic circuitE) None of the above
F) All of the above

Question 5

In an ECG,what does the T wave represent

Accepted Answer

A)  Depolarization of the atria
B)  Depolarization of the right ventricle
C)  Repolarization of the ventricles
D)  Closure of the AV valves
E)  Depolarization of the left ventricleF) None of the above
G) C) and D)

Question 6

The papillary muscles attach to the cusps of the atrioventricular valves by means of the

Accepted Answer

A)  pectinate muscles.
B)  trabeculae carneae.
C)  conus arteriosus.
D)  tendinous cords.
E)  tricuspid valve.F) B) and E)
G) C) and D)

Question 7

Which pair is located more anteriorly in a heart in normal position

Accepted Answer

A)  Left atrium and left ventricle
B)  Left atrium and right ventricle
C)  Right atrium and left atrium
D)  Right atrium and right ventricle
E)  Right atrium and left ventricleF) A) and B)
G) D) and E)

Question 8

The fossa ovalis appears just above the opening of the coronary sinus within the

Accepted Answer

A)  left atrium.
B)  left ventricle.
C)  right atrium.
D)  right ventricle.E) None of the above
F) A) and C)

Question 9

The left and right coronary arteries

Accepted Answer

A)  are interconnected with several high-volume anastomoses allowing for well perfused alternate blood paths.
B)  are functional end arteries because the blockage of one of them leads to tissue death in the area it supplies.C) A) and B)
D) undefined

Question 10

Someone with a heart block would have

Accepted Answer

A)  a long P-R interval.
B)  a long T-P interval.
C)  a short P-R interval.
D)  a short T-P interval.E) B) and D)
F) A) and D)

Question 11

As blood is pumped out of the heart and into the major arteries leaving the heart,it

Accepted Answer

A)  pushes against the semilunar valves and opens them.
B)  pushes against the semilunar valves and closes them.
C)  fills the cusps of the semilunar valves,causing them to expand and block the backflow of blood
D)  pushes against the atrioventricular valves and opens them.
E)  fills the cusps of the atrioventricular valve causing opening of the bicuspid and closure of the tricuspid.F) B) and C)
G) A) and E)

Question 12

It is the contraction of the atria during atrial systole that completes the filling of the ventricles while the ventricles are in diastole.

Accepted Answer

A) True 
 B)False

Question 13

The units for perfusion of blood are typically

Accepted Answer

A)  grams per minute.
B)  milliliters per minute per gram.
C)  millimiters per hour per kilogram.
D)  liters per gram.
E)  beats per minute per gram.F) A) and B)
G) None of the above

Question 14

Blood moves into and then out of a heart chamber because

Accepted Answer

A)  it moves along its pressure gradient,and that gradient depends on contraction and relaxation during the cardiac cycle.
B)  it is under constant pressure,but its movement is dictated by the control of valve openings and closures.
C)  the veins and arteries constrict and dilate to propel and attract blood.
D)  All of the choices are correct.E) A) and D)
F) All of the above

Question 15

Occlusion of blood vessels tends to lead to

Accepted Answer

A)  increases in perfusion.
B)  increases in capillary exchange.
C)  inadequate blood supply and damage to body tissues.
D)  defibrillation of cardic muscle cell contraction.E) None of the above
F) All of the above

Question 16

Most of the calcium that triggers contraction of cardiac muscle comes

Accepted Answer

A)  into the cell through leakage channels in the sarcolemma.
B)  into the cell through voltage-gated channels in the sarcolemma.
C)  from the sarcoplasmic reticulum of the cell.
D)  from the Golgi apparatus of the cell.E) A) and D)
F) B) and D)

Question 17

The serous fluid within the pericardial cavity works to

Accepted Answer

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

Question 18

A drug that decreased calcium levels in a muscle cell and thereby lowered the number of crossbridges formed during the heart's contractions would be a

Accepted Answer

A)  positive chronotropic agent.
B)  negative chronotropic agent.
C)  positive inotropic agent.
D)  negative inotropic agent.E) A) and C)
F) C) and D)

Question 19

The term used to describe the inadequate blood flow to a structure caused by obstruction of the blood supply is _________________.

Accepted Answer

The answer of The term used to describe the inadequate...

Question 20

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

Accepted Answer

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

Exam 19: Cardiovascular System: Heart

Which circuit of the cardiovascular system includes the left ventricle and aorta

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Blood moves into and then out of a heart chamber because

Correct AnswerverifiedShow Answer

Which heart chambers contain deoxygenated blood

Correct AnswerverifiedShow Answer

As blood is pumped out of the heart and into the major arteries leaving the heart,it

Correct AnswerverifiedShow Answer

The left and right coronary arteries

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Occlusion of blood vessels tends to lead to

Correct AnswerverifiedShow Answer

-In this figure showing an anterior view of the heart,what is depicted by number 7

Correct AnswerverifiedShow Answer

Someone with a heart block would have

Correct AnswerverifiedShow Answer

The serous fluid within the pericardial cavity works to

Correct AnswerverifiedShow Answer

The units for perfusion of blood are typically

Correct AnswerverifiedShow Answer

In an ECG,what does the T wave represent

Correct AnswerverifiedShow Answer

It is the contraction of the atria during atrial systole that completes the filling of the ventricles while the ventricles are in diastole.

Correct AnswerverifiedShow Answer

Which pair is located more anteriorly in a heart in normal position

Correct AnswerverifiedShow Answer

The papillary muscles attach to the cusps of the atrioventricular valves by means of the

Correct AnswerverifiedShow Answer

Most of the calcium that triggers contraction of cardiac muscle comes

Correct AnswerverifiedShow Answer

A drug that decreased calcium levels in a muscle cell and thereby lowered the number of crossbridges formed during the heart's contractions would be a

Correct AnswerverifiedShow Answer

The term used to describe the inadequate blood flow to a structure caused by obstruction of the blood supply is _________________.

Correct AnswerverifiedShow Answer

The fossa ovalis appears just above the opening of the coronary sinus within the

Correct AnswerverifiedShow Answer

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