Question 1

Which of the following are benefits of moderate exercise?
I.Reduced stress,anxiety and depression
II.Reduced weight
III.Decreased bone density
IV.Improved sleep quality

Accepted Answer

A)   I, III, and IV only
B)   I, II, III, and IV
C)   I and IV only
D)   III and IV only A

Question 2

What changes would be expected in blood vessels in the following areas during exercise?
I.Capillaries of working muscles would fully dilate
II.Visceral blood vessels would dilate
III.Blood vessels of non-working muscles would constrict

Accepted Answer

A)   I and III only
B)   I, II, and III
C)   I only
D)   II and III only A

Question 3

What changes in ventilatory pattern would be expected during the third stage of moderate exercise?

Accepted Answer

A)   alveolar ventilation stabilizes
B)   alveolar ventilation returns to pre-exercise level
C)   alveolar ventilation increases rapidly
D)   alveolar ventilation gradually increases until maximum ventilation is reached A

Question 4

During heavy exercise,what percent of the maximal exercise level is reached during the second stage?

Accepted Answer

A)   60-70%
B)   50-60%
C)   40-50%
D)   30-40%

Question 5

What is the maximum cardiac output expected to be in marathon runners?

Accepted Answer

A)   up to 40 L/min
B)   up to 30 L/min
C)   up to 20 L/min
D)   up to 10 L/min

Question 6

Which of the following can produce vasodilation of working muscles?
I.Adenosine triphosphate
II.Aldosterone
III.Acetylcholine
IV.Lactic acid

Accepted Answer

A)   I, II, and III only
B)   I, II, III, and IV
C)   I only
D)   IV only

Question 7

What change in ventilatory pattern is seen during the first stage of moderate exercise?

Accepted Answer

A)   increase in alveolar ventilation within seconds after onset of exercise
B)   increase in alveolar ventilation within minutes of onset of exercise
C)   slight decrease in alveolar ventilation within seconds after onset of exercise
D)   slight decrease in alveolar ventilation for first two minutes after onset of exercise

Question 8

Which of the following are signs and symptoms of heat stroke?
I.Absence of sweating
II.Muscle cramping
III.Circulatory collapse
IV.Confusion

Accepted Answer

A)   I, II, III, and IV
B)   II, III, and IV only
C)   I, II and IV only
D)   I and Ii only

Question 9

By what amount can ventilation increase during strenuous exercise?

Accepted Answer

A)   up to 20-fold increase
B)   10-fold increase
C)   5-fold increase
D)   2-fold increase

Question 10

During heavy exercise,what change in perfusion to working muscles can occur?

Accepted Answer

A)   It can increase 25-fold
B)   It can increase 8-fold
C)   It can increase 12-fold
D)   It can increase 4-fold

Question 11

What increase in body heat production can occur during exercise?

Accepted Answer

A)   20-fold
B)   30-fold
C)   10-fold
D)   5-fold

Question 12

What changes would be expected in the size of the heart chambers and heart mass of a marathon runner?

Accepted Answer

A)   Both would increase
B)   Both would decrease
C)   No change would occur
D)   The size of the heart chambers would remain normal but the heart mass would increase

Question 13

During heavy exercise,what percent of the total oxygen consumption is consumed by the skeletal muscles?

Accepted Answer

A)   95% +
B)   75%
C)   55%
D)   35%

Question 14

Which of the following are benefits of pulmonary rehabilitation in COPD?
I.Increased exercise capacity
II.Reduction in anxiety and depression
III.Increased hospital length of stay
IV.Improved upper arm strength and endurance

Accepted Answer

A)   I , II, and IV only
B)   I, II, III, and IV
C)   I and IV only
D)   I and II only

Question 15

At rest,what percent of the total oxygen consumption is consumed by the skeletal muscles ?

Accepted Answer

A)   35-40%
B)   25-30%
C)   10-15%
D)   50-55%

Question 16

What changes in arterial blood gases would be expected to occur exercise levels of 40% of maximum oxygen consumption?
I.PaO₂ would decrease
II.PaCO₂ would decrease
III.pH would remain unchanged

Accepted Answer

A)   III only
B)   I, II, and III
C)   I only
D)   II only

Question 17

Which of the following pathways likely contribute to increased ventilation during exercise?
I.Cerebral cortex
II.Proprioceptors in moving muscles,tendons and joints
III.Increased body temperature

Accepted Answer

A)   I, II, and III
B)   I and II only
C)   II and III only
D)   I and III only

Question 18

During heavy exercise,what change in CO can occur?

Accepted Answer

A)   It can increase 8-fold
B)   It can increase 4-fold
C)   It can increase 25-fold
D)   It can increase 2-fold

Question 19

Which of the following circulatory changes are expected during exercise?
I.Rate and strength of cardiac contractions increase
II.Blood vessels in working muscles constrict
III.Blood vessels of peripheral vascular system dilate
IV.Blood vessel of heart and brain constrict

Accepted Answer

A)   I only
B)   I, II, III and IV
C)   I, II, and III only
D)   II only

Question 20

What percent of maximum can the respiratory system reach during extreme exercise?

Accepted Answer

A)   65%
B)   90%
C)   50%
D)   75%

Exam 18: Exercise and Its Effects on the Cardiopulmonary System

Which of the following are benefits of moderate exercise? I.Reduced stress,anxiety and depression II.Reduced weight III.Decreased bone density IV.Improved sleep quality

What changes would be expected in blood vessels in the following areas during exercise? I.Capillaries of working muscles would fully dilate II.Visceral blood vessels would dilate III.Blood vessels of non-working muscles would constrict

What changes in ventilatory pattern would be expected during the third stage of moderate exercise?

During heavy exercise,what percent of the maximal exercise level is reached during the second stage?

What is the maximum cardiac output expected to be in marathon runners?

Which of the following can produce vasodilation of working muscles? I.Adenosine triphosphate II.Aldosterone III.Acetylcholine IV.Lactic acid

What change in ventilatory pattern is seen during the first stage of moderate exercise?

Which of the following are signs and symptoms of heat stroke? I.Absence of sweating II.Muscle cramping III.Circulatory collapse IV.Confusion

By what amount can ventilation increase during strenuous exercise?

During heavy exercise,what change in perfusion to working muscles can occur?

What increase in body heat production can occur during exercise?

What changes would be expected in the size of the heart chambers and heart mass of a marathon runner?

During heavy exercise,what percent of the total oxygen consumption is consumed by the skeletal muscles?

Which of the following are benefits of pulmonary rehabilitation in COPD? I.Increased exercise capacity II.Reduction in anxiety and depression III.Increased hospital length of stay IV.Improved upper arm strength and endurance

At rest,what percent of the total oxygen consumption is consumed by the skeletal muscles ?

What changes in arterial blood gases would be expected to occur exercise levels of 40% of maximum oxygen consumption? I.PaO₂ would decrease II.PaCO₂ would decrease III.pH would remain unchanged

Which of the following pathways likely contribute to increased ventilation during exercise? I.Cerebral cortex II.Proprioceptors in moving muscles,tendons and joints III.Increased body temperature

During heavy exercise,what change in CO can occur?

Which of the following circulatory changes are expected during exercise? I.Rate and strength of cardiac contractions increase II.Blood vessels in working muscles constrict III.Blood vessels of peripheral vascular system dilate IV.Blood vessel of heart and brain constrict

What percent of maximum can the respiratory system reach during extreme exercise?