Question 1

What increase in body heat production can occur during exercise?

Accepted Answer

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

Question 2

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

Accepted Answer

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

Question 3

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

Accepted Answer

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

Question 4

What is the primary treatment for heat stroke?

Accepted Answer

A)  Rapid reduction of body temperature 
B)  Reduce PaCO2 as rapidly as possible 
C)  Restore electrolytes as rapidly as possible 
D)  Rehydrate as rapidly as possible 
A)  Rapid reduction of body temperature 
B)  Reduce PaCO2 as rapidly as possible 
C)  Restore electrolytes as rapidly as possible 
D)  Rehydrate as rapidly as possible

Question 5

By what amount can ventilation increase during strenuous exercise?

Accepted Answer

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

Question 6

What is the formula for calculating the maximum heart rate?

Accepted Answer

A)  maximum heart rate = 220 - (age in years) 
B)  maximum heart rate = 250 - (age in years x 2) 
C)  maximum heart rate = 250 - (age in years +20) 
D)  maximum heart rate = 220 - (age in years x 1.5) 
A)  maximum heart rate = 220 - (age in years) 
B)  maximum heart rate = 250 - (age in years x 2) 
C)  maximum heart rate = 250 - (age in years +20) 
D)  maximum heart rate = 220 - (age in years x 1.5)

Question 7

What changes in arterial blood gases would be expected to occur during very heavy exercise? 
PaO2 would decline
PaCO2 would decline
PH would decline

Accepted Answer

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

Question 8

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

Question 9

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

Accepted Answer

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

Question 10

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

Accepted Answer

A)  aerobic threshold 
B)  anaerobic threshold 
C)  cardiovascular threshold 
D)  isometric threshold 
A)  aerobic threshold 
B)  anaerobic threshold 
C)  cardiovascular threshold 
D)  isometric threshold

Question 11

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

Accepted Answer

A)  Both should increase 
B)  PCWP would increase but mean pulmonary artery pressure would drop due to the increased recruitment of pulmonary capillaries 
C)  Both should remain within normal limits 
D)  The mean pulmonary artery pressure would increase and PCWP would remain within normal limits 
A)  Both should increase 
B)  PCWP would increase but mean pulmonary artery pressure would drop due to the increased recruitment of pulmonary capillaries 
C)  Both should remain within normal limits 
D)  The mean pulmonary artery pressure would increase and PCWP would remain within normal limits

Question 12

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

Accepted Answer

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

Question 13

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

Accepted Answer

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

Question 14

At what exercise level would the alveolar-arterial PO2 difference be expected to change?

Accepted Answer

A)  It will increase when 40% or more of maximum oxygen consumption is reached 
B)  It will increase when 60% or more of maximum oxygen consumption is reached 
C)  It will start to decrease when 40% or more of maximum oxygen consumption is reached 
D)  It will start to decrease when 60% or more of maximum oxygen consumption is reached 
A)  It will increase when 40% or more of maximum oxygen consumption is reached 
B)  It will increase when 60% or more of maximum oxygen consumption is reached 
C)  It will start to decrease when 40% or more of maximum oxygen consumption is reached 
D)  It will start to decrease when 60% or more of maximum oxygen consumption is reached

What increase in body heat production can occur during exercise?

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

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

What is the primary treatment for heat stroke?

By what amount can ventilation increase during strenuous exercise?

What is the formula for calculating the maximum heart rate?

What changes in arterial blood gases would be expected to occur during very heavy exercise? PaO₂ would decline PaCO₂ would decline PH would decline

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

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

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

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

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

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?

The Anatomy and Physiology of the Respitory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon Dioxide Transport

Acid-Base Balance and Regulation

Ventilation-Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

The Standard 12-Ecg Lead System

Ecg Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

Filters

Exam 18: Exercise and Its Effects on the Cardiopulmonary System

What increase in body heat production can occur during exercise?

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

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

What is the primary treatment for heat stroke?

By what amount can ventilation increase during strenuous exercise?

What is the formula for calculating the maximum heart rate?

What changes in arterial blood gases would be expected to occur during very heavy exercise? PaO2 would decline PaCO2 would decline PH would decline

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

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

What is the term for the point at which the energy pathways that produce lactic acid start to operate?

What change would be expected in mean pulmonary arterial pressure and pulmonary capillary wedge pressure during intense exercise?

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

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

At what exercise level would the alveolar-arterial PO2 difference be expected to change?

The Anatomy and Physiology of the Respitory System

Ventilation

Pulmonary Function Measurements

The Diffusion of Pulmonary Gases

The Anatomy and Physiology of the Circulatory System

Oxygen and Carbon Dioxide Transport

Acid-Base Balance and Regulation

Ventilation-Perfusion Relationships

Control of Ventilation

Fetal Development and the Cardiopulmonary System

Aging and the Cardiopulmonary System

Electrophysiology of the Heart

The Standard 12-Ecg Lead System

Ecg Interpretation

Hemodynamic Measurements

Renal Failure and Its Effects on the Cardiopulmonary System

Sleep Physiology and Its Relationship to the Cardiopulmonary System

High Altitude and Its Effects on the Cardiopulmonary System

High Pressure Environments and Their Effects on the Cardiopulmonary System

Filters

What changes in arterial blood gases would be expected to occur during very heavy exercise? PaO₂ would decline PaCO₂ would decline PH would decline

At what exercise level would the alveolar-arterial PO₂ difference be expected to change?