Question 1

Which of the following is the correct order of events pertaining to contraction of the left ventricle?

Accepted Answer

A)  The bundle branches depolarize, the ventricle contracts, the ventricular pressure increases, the aortic volume increases. 
B)  The aortic volume increases, the ventricular pressure increases, the ventricle contracts, the bundle branches depolarize. 
C)  The ventricular pressure increases, the bundle branches depolarize, the aortic volume increases, the ventricle contracts. 
D)  The bundle branches depolarize, the ventricular pressure increases, the ventricle contracts, the aortic volume increases. 
A)  The bundle branches depolarize, the ventricle contracts, the ventricular pressure increases, the aortic volume increases. 
B)  The aortic volume increases, the ventricular pressure increases, the ventricle contracts, the bundle branches depolarize. 
C)  The ventricular pressure increases, the bundle branches depolarize, the aortic volume increases, the ventricle contracts. 
D)  The bundle branches depolarize, the ventricular pressure increases, the ventricle contracts, the aortic volume increases. A

Question 2

In order to maintain systemic blood flow, an increase in peripheral resistance would require an increase in blood pressure.

Accepted Answer

A) True 
 B)False  True

Question 3

The decrease in maximal heart rate with age in adults can be estimated via

Accepted Answer

A)  HR max = 220 - age. 
B)  HR max = 200 - age. 
C)  HR max = 210 - age. 
D)  HR max = 205 - age. 
A)  HR max = 220 - age. 
B)  HR max = 200 - age. 
C)  HR max = 210 - age. 
D)  HR max = 205 - age. A

Question 4

At any end-diastolic volume, stroke volume is increased by parasympathetic stimulation.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following represents the correct order of events of the flow of blood after it leaves the left ventricle and before it returns to the right atrium?

Accepted Answer

A)  Blood flows through the aorta, oxygen moves out of the capillaries, blood flows though veins, blood enters the venules. 
B)  Blood flows through the venules, blood flows through the veins, oxygen moves out of the capillaries, blood enters the aorta. 
C)  Oxygen moves out of the capillaries, blood flows through the aorta, blood flows through the venules, blood enters the veins. 
D)  Blood flows through the aorta, oxygen moves out of the capillaries, blood flows through the venules, blood enters the veins. 
A)  Blood flows through the aorta, oxygen moves out of the capillaries, blood flows though veins, blood enters the venules. 
B)  Blood flows through the venules, blood flows through the veins, oxygen moves out of the capillaries, blood enters the aorta. 
C)  Oxygen moves out of the capillaries, blood flows through the aorta, blood flows through the venules, blood enters the veins. 
D)  Blood flows through the aorta, oxygen moves out of the capillaries, blood flows through the venules, blood enters the veins.

Question 6

Skeletal and cardiac muscle are similar in which of the following ways?

Accepted Answer

A)  both muscles contain type I, IIa, and IIx fibers 
B)  both muscles are under voluntary control 
C)  both muscles contain fibers that are branched 
D)  both muscles are composed of striated fibers containing actin and myosin 
A)  both muscles contain type I, IIa, and IIx fibers 
B)  both muscles are under voluntary control 
C)  both muscles contain fibers that are branched 
D)  both muscles are composed of striated fibers containing actin and myosin

Question 7

The contraction phase of the heart is called

Accepted Answer

A)  diastole. 
B)  atrial contraction. 
C)  systole. 
D)  the cardiac cycle. 
A)  diastole. 
B)  atrial contraction. 
C)  systole. 
D)  the cardiac cycle.

Question 8

Most of the increase in mean arterial blood pressure that occurs during dynamic (isotonic) incremental exercise is due to

Accepted Answer

A)  an increase in diastolic blood pressure. 
B)  the increase in systolic blood pressure. 
C)  both an increase in diastolic and systolic blood pressure. 
D)  none of the above. 
A)  an increase in diastolic blood pressure. 
B)  the increase in systolic blood pressure. 
C)  both an increase in diastolic and systolic blood pressure. 
D)  none of the above.

Question 9

Beta-adrenergic blocking medications

Accepted Answer

A)  interfere with epinephrine and norepinephrine receptor function. 
B)  increase heart rate. 
C)  increase stroke volume. 
D)  inhibit the actions of acetylcholine. 
A)  interfere with epinephrine and norepinephrine receptor function. 
B)  increase heart rate. 
C)  increase stroke volume. 
D)  inhibit the actions of acetylcholine.

Question 10

The fact that an increase in end-diastolic ventricular volume increases the stroke volume of the heart is an illustration of the

Accepted Answer

A)  influence of the parasympathetic nervous system on cardiac output. 
B)  Frank-Starling law of the heart. 
C)  influence of atrioventricular node on cardiac output. 
D)  influence of blood pressure on cardiac output. 
A)  influence of the parasympathetic nervous system on cardiac output. 
B)  Frank-Starling law of the heart. 
C)  influence of atrioventricular node on cardiac output. 
D)  influence of blood pressure on cardiac output.

Question 11

The muscle of the heart is referred to as the

Accepted Answer

A)  pericardium. 
B)  myocardium. 
C)  epicardium. 
D)  endocardium. 
A)  pericardium. 
B)  myocardium. 
C)  epicardium. 
D)  endocardium.

Question 12

During exercise, the time spent in diastole and systole

Accepted Answer

A)  remains unchanged. 
B)  is decreased equally. 
C)  is decreased, with the greatest decrease occurring in diastole. 
D)  is increased. 
A)  remains unchanged. 
B)  is decreased equally. 
C)  is decreased, with the greatest decrease occurring in diastole. 
D)  is increased.

Question 13

The greatest resistance to blood flow is in the

Accepted Answer

A)  veins. 
B)  arterioles. 
C)  aorta. 
D)  capillaries. 
A)  veins. 
B)  arterioles. 
C)  aorta. 
D)  capillaries.

Question 14

In a healthy heart, the time spent in systole is generally

Accepted Answer

A)  longer than diastole. 
B)  equal to diastole. 
C)  shorter than diastole. 
D)  three times longer than diastole. 
A)  longer than diastole. 
B)  equal to diastole. 
C)  shorter than diastole. 
D)  three times longer than diastole.

Question 15

Exercise training helps the heart to resist permanent damage during a heart attack.

Accepted Answer

A) True 
 B)False

Question 16

The metabolic demand of the heart can be estimated by

Accepted Answer

A)  the rate-pressure product. 
B)  the double product. 
C)  multiplying heart rate by systolic blood pressure. 
D)  all of the above. 
A)  the rate-pressure product. 
B)  the double product. 
C)  multiplying heart rate by systolic blood pressure. 
D)  all of the above.

Question 17

The normal pacemaker of the heart is the

Accepted Answer

A)  atrioventricular node. 
B)  sinoatrial node. 
C)  AV node. 
D)  SV node. 
A)  atrioventricular node. 
B)  sinoatrial node. 
C)  AV node. 
D)  SV node.

Question 18

The difference between systolic and diastolic blood pressure is called the

Accepted Answer

A)  pulse pressure. 
B)  mean arterial blood pressure. 
C)  brachial pressure. 
D)  double product. 
A)  pulse pressure. 
B)  mean arterial blood pressure. 
C)  brachial pressure. 
D)  double product.

Question 19

All gas exchange between the vascular system and tissues occurs in

Accepted Answer

A)  venules. 
B)  capillaries. 
C)  arterioles. 
D)  veins. 
A)  venules. 
B)  capillaries. 
C)  arterioles. 
D)  veins.

Question 20

The most important variable that determines resistance to blood flow is

Accepted Answer

A)  the viscosity of blood. 
B)  the length of the blood vessel. 
C)  the diameter of the vessel. 
D)  blood pressure. 
A)  the viscosity of blood. 
B)  the length of the blood vessel. 
C)  the diameter of the vessel. 
D)  blood pressure.

Exam 10: Circulatory Responses to Exercise

Which of the following is the correct order of events pertaining to contraction of the left ventricle?

In order to maintain systemic blood flow, an increase in peripheral resistance would require an increase in blood pressure.

The decrease in maximal heart rate with age in adults can be estimated via

At any end-diastolic volume, stroke volume is increased by parasympathetic stimulation.

Which of the following represents the correct order of events of the flow of blood after it leaves the left ventricle and before it returns to the right atrium?

Skeletal and cardiac muscle are similar in which of the following ways?

The contraction phase of the heart is called

Most of the increase in mean arterial blood pressure that occurs during dynamic (isotonic) incremental exercise is due to

Beta-adrenergic blocking medications

The fact that an increase in end-diastolic ventricular volume increases the stroke volume of the heart is an illustration of the

The muscle of the heart is referred to as the

During exercise, the time spent in diastole and systole

The greatest resistance to blood flow is in the

In a healthy heart, the time spent in systole is generally

Exercise training helps the heart to resist permanent damage during a heart attack.

The metabolic demand of the heart can be estimated by

The normal pacemaker of the heart is the

The difference between systolic and diastolic blood pressure is called the

All gas exchange between the vascular system and tissues occurs in

The most important variable that determines resistance to blood flow is

Introduction to Exercise Physiology

Common Measurements in Exercise Physiology

Control of the Internal Environment

Bioenergetics

Exercise Metabolism

Cell Signaling and the Hormonal Responses to Exercise

Exercise and the Immune System

The Nervous System: Structure and Control of Movement

Skeletal Muscle: Structure and Function

Respiration During Exercise

Acid-Base Balance During Exercise

Temperature Regulation

The Physiology of Training: Effect on Vo2 Max, Performance, and Strength

Risk Factors and Inflammation: Links to Chronic Disease

Exercise Prescriptions for Health and Fitness

Exercise for Special Populations

Body Composition and Nutrition for Health

Factors Affecting Performance

Laboratory Assessment of Human Performance

Training for Performance

Training for the Female Athlete, Children, Special Populations, and the Masters Athlete

Nutrition, Body Composition, and Performance

Exercise and the Environment

Ergogenic Aids

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