Question 1

The work of breathing normally requires about 3% of total energy expenditure, this increases under all of the following situations except

Accepted Answer

A)  when elastic recoil is decreased. 
B)  when resistance goes up. 
C)  when the partial pressure of oxygen decreases in the air. 
D)  when ventilation must be increased. 
E)  it increases with all of the above 
A)  when elastic recoil is decreased. 
B)  when resistance goes up. 
C)  when the partial pressure of oxygen decreases in the air. 
D)  when ventilation must be increased. 
E)  it increases with all of the above

Question 2

Which of the following does not bring about increased airway resistance?

Accepted Answer

A)  asthma. 
B)  epinephrine. 
C)  slow-reactive substance of anaphylaxis. 
D)  emphysema. 
E)  excess mucus production. 
A)  asthma. 
B)  epinephrine. 
C)  slow-reactive substance of anaphylaxis. 
D)  emphysema. 
E)  excess mucus production.

Question 3

Indicate the effect the following changes would have on oxygen release from Hb.
-pH has increased

Accepted Answer

A) this change would increase the rate 
B) this change would decrease the rate 
C) this change would have no effect on the rate 
A) this change would increase the rate 
B) this change would decrease the rate 
C) this change would have no effect on the rate

The work of breathing normally requires about 3% of total energy expenditure, this increases under all of the following situations except

Which of the following does not bring about increased airway resistance?

Indicate the effect the following changes would have on oxygen release from Hb. -pH has increased

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

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Exam 12: The Respiratory System

The work of breathing normally requires about 3% of total energy expenditure, this increases under all of the following situations except

Which of the following does not bring about increased airway resistance?

Indicate the effect the following changes would have on oxygen release from Hb. -pH has increased

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters