Question 1

The cardiac cycle_________ .

Accepted Answer

A)  represents all of the events of the heart during one heartbeat
B)  is a graph showing the timing of heart valve closure
C)  is a graph of electrical activity of the heart
D)  is a graph of pressure changes in the heart as it contracts

Question 2

The term systole refers to __________.

Accepted Answer

A)  ventricular contraction
B)  atrial depolarization
C)  atrial contraction
D)  ventricular depolarization

Question 3

Heart sounds are associated with_________ .

Accepted Answer

A)  turbulent blood flow
B)  turbulent blood flow, closure of the AV valves, and closure of the semilunar valves
C)  closure of the AV valves
D)  closure of the semilunar valves

Question 4

How is the degree of oxygenation of the blood related to skin color?

Accepted Answer

A)  when the blood is oxygen- rich, skin will be pale or white
B)  when the blood is oxygen- rich, skin will be pink or red
C)  when the blood is oxygen- poor, skin will be pink or red B

Question 5

Assume that the heart is beating at 70 beats per minute. What is the approximate length of the cardiac cycle?

Accepted Answer

A)  0.86 sec
B)  0.80 sec
C)  0.75 sec
D)  0.92 sec

Question 6

During moderate exercise,_________ .

Accepted Answer

A)  heart rate and blood pressure increase
B)  blood pressure remains at pre- exercise levels
C)  blood pressure decreases
D)  heart rate remains the same or decreases

Question 7

The first of the two numbers measured when taking the blood pressure represents_________ .

Accepted Answer

A)  isovolumetric pressure
B)  diastolic pressure
C)  systolic pressure

Question 8

In comparing the volume of blood moved from atria to ventricles when the atria contract with the volume of blood ejected from the heart when the ventricles contract, we observe that_________ .

Accepted Answer

A)  atrial contractions move as much blood into the ventricles as ventricles eject
B)  atrial contractions move less blood into the ventricles than ventricles eject
C)  atrial contractions move more blood into the ventricles than ventricles eject

Question 9

The first heart sounds are best heard _________.

Accepted Answer

A)  just beneath the xiphoid process of the sternum
B)  in the second intercostal spaces at the sternal margins
C)  directly over the body of the sternum, just inferior to the sternal angle
D)  in the 5th intercostal spaces, at various distances from the sternal margins

Question 10

The first heart sound heard during the cardiac cycle is associated with __________.

Accepted Answer

A)  closure of the semilunar valves
B)  closure of the AV valves
C)  opening of the AV valves
D)  opening of the semilunar valves

Question 11

When taking blood pressure, the sounds heard when the pressure cuff is released are due to_________ .

Accepted Answer

A)  the larger than normal diameter of the blood vessel
B)  the smaller than normal diameter of the blood vessel
C)  turbulent blood flow
D)  smooth blood flow

Question 12

Pulse pressure_________.

Accepted Answer

A)  can be palpated easily under the chin
B)  refers to alternating surges of pressure in an artery
C)  is the large difference between the apical and radial pulses
D)  is the difference between systolic and diastolic pressure

Question 13

Venous pressure __________.

Accepted Answer

A)  is not affected by external factors such as muscle activity
B)  is usually the same in veins as in their corresponding arteries
C)  is much lower than arterial pressure
D)  may be measured directly with a sphygmomanometer and pressure cuff C

Question 14

Is it possible to determine blood pressure from a cardiac cycle graph? Why or why not?

Accepted Answer

A)  Yes, but only systolic pressure can be read.
B)  No, blood pressure must be measured using a pressure cuff and stethoscope.
C)  Yes, both systolic and diastolic pressures can be read.
D)  Yes, but only diastolic pressure can be read.

Question 15

Which phase of the cardiac cycle is longest?

Accepted Answer

A)  isovolumetric contraction
B)  ventricular diastole
C)  ventricular systole
D)  isovolumetric relaxation

Question 16

The mean arterial pressure for a patient whose blood pressure is 110/80 is_________ .

Accepted Answer

A)  90 mm Hg
B)  30 mm Hg
C)  80 mm Hg
D)  95 mm Hg A

Question 17

What does the cardiac cycle reveal about the opening and closing of the heart valves?

Accepted Answer

A)  There are times when all four heart valves are open.
B)  There are no times when all four heart valves are closed.
C)  The AV valves close first, then the semilunars open and close, then the AV valves open.
D)  The AV valves open, then the semilunars open, then the AV valves close, followed by closure of the semilunars.

Question 18

By taking a pulse you can determine __________.

Accepted Answer

A)  regularity of the pulse
B)  pulse rate, regularity of the pulse, and strength of the pulse
C)  pulse rate (normally equal to heart rate) 
D)  strength of the pulse

Question 19

If you cut yourself and blood spurts rhythmically from the injury, you have probably cut_________ .

Accepted Answer

A)  a vein
B)  many veins and capillaries
C)  an artery
D)  a capillary

Question 20

The pressure generated during contraction of the atria is_________ that generated during contraction of the ventricles.

Accepted Answer

A)  less than
B)  greater than
C)  the same as

Exam 33: Human Cardiovascular Physiology: Blood Pressure and Pulse Determinations

The cardiac cycle_________ .

Correct AnswerverifiedShow Answer

The term systole refers to __________.

Correct AnswerverifiedShow Answer

Heart sounds are associated with_________ .

Correct AnswerverifiedShow Answer

How is the degree of oxygenation of the blood related to skin color?

Correct AnswerverifiedB

Assume that the heart is beating at 70 beats per minute. What is the approximate length of the cardiac cycle?

Correct AnswerverifiedShow Answer

During moderate exercise,_________ .

Correct AnswerverifiedShow Answer

The first of the two numbers measured when taking the blood pressure represents_________ .

Correct AnswerverifiedShow Answer

In comparing the volume of blood moved from atria to ventricles when the atria contract with the volume of blood ejected from the heart when the ventricles contract, we observe that_________ .

Correct AnswerverifiedShow Answer

The first heart sounds are best heard _________.

Correct AnswerverifiedShow Answer

The first heart sound heard during the cardiac cycle is associated with __________.

Correct AnswerverifiedShow Answer

When taking blood pressure, the sounds heard when the pressure cuff is released are due to_________ .

Correct AnswerverifiedShow Answer

Pulse pressure_________.

Correct AnswerverifiedShow Answer

Venous pressure __________.

Correct AnswerverifiedC

Is it possible to determine blood pressure from a cardiac cycle graph? Why or why not?

Correct AnswerverifiedShow Answer

Which phase of the cardiac cycle is longest?

Correct AnswerverifiedShow Answer

The mean arterial pressure for a patient whose blood pressure is 110/80 is_________ .

Correct AnswerverifiedA

What does the cardiac cycle reveal about the opening and closing of the heart valves?

Correct AnswerverifiedShow Answer

By taking a pulse you can determine __________.

Correct AnswerverifiedShow Answer

If you cut yourself and blood spurts rhythmically from the injury, you have probably cut_________ .

Correct AnswerverifiedShow Answer

The pressure generated during contraction of the atria is_________ that generated during contraction of the ventricles.

Correct AnswerverifiedShow Answer

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