Question 1

In anemia, 2,3-DPG is ________ and oxygen affinity is _________.

Accepted Answer

A)  decreased, decreased.
B)  decreased, increased.
C)  increased, increased.
D)  increased, decreased.E) C) and D)
F) B) and D)

Question 2

The ventilation/perfusion ratio

Accepted Answer

A)  is lowest at the apex of the lungs.
B)  increases when blood flow is decreased.
C)  decreases when ventilation is increased.
D)  increases due to dilation of the pulmonary arterioles.E) A) and C)
F) B) and C)

Question 3

The production of hemoglobin and red blood cells in bone marrow is controlled by a hormone called thymopoietin.

Accepted Answer

A) True 
 B)False

Question 4

Lung compliance increases as the amount of surfactant in the lung increases.

Accepted Answer

A) True 
 B)False

Question 5

The conducting zone contains all of the following EXCEPT

Accepted Answer

A)  the primary bronchi.
B)  the larynx.
C)  the terminal bronchioles.
D)  the respiratory bronchioles.E) None of the above
F) A) and D)

Question 6

Acclimatization to altitude

Accepted Answer

A)  stimulates increased blood cell synthesis.
B)  decreases ventilation.
C)  increases the affinity of hemoglobin for oxygen.
D)  All of the choices are correct.E) C) and D)
F) All of the above

Question 7

Inhalation and accumulation of particles less than 6 mm in size can cause

Accepted Answer

A)  asthma.
B)  emphysema.
C)  cystic fibrosis.
D)  pulmonary fibrosis.E) A) and D)
F) A) and C)

Question 8

Pulmonary circulation is a ____ resistance and ____ pressure pathway.

Accepted Answer

A)  low, high
B)  low, low
C)  high, low
D)  high, highE) C) and D)
F) B) and D)

Question 9

The Bohr effect

Accepted Answer

A)  describes the effect of pH on the affinity of hemoglobin for oxygen.
B)  describes the effect of pH on the affinity of hemoglobin for carbon dioxide.
C)  describes the mechanism of ventilation.
D)  describes the effect of solubility on the amount of gas dissolved in blood.E) All of the above
F) B) and D)

Question 10

The enzyme ______ catalyzes the formation of H2CO3 from CO2 and water.

Accepted Answer

A)  renin
B)  nitric oxide synthase
C)  lactate dehydrogenase
D)  carbonic anhydraseE) A) and B)
F) A) and C)

Question 11

Who's law states that the amount of gas dissolved in a liquid is directly proportional to the partial pressure of the gas?

Accepted Answer

A)  Charles law
B)  Boyle's law
C)  Henry's law
D)  Laplace's lawE) A) and B)
F) None of the above

Question 12

Respiratory acidosis results from hyperventilation.

Accepted Answer

A) True 
 B)False

Question 13

Obstructive pulmonary diseases often cause the FEV1.0 to be decreased by __________ or more.

Accepted Answer

A)  0%
B)  5%
C)  10%
D)  20%E) B) and D)
F) None of the above

Question 14

Carbon monoxide is lethal because it

Accepted Answer

A)  reduces CO2 and slows breathing.
B)  increases CO2 and causes seizures.
C)  binds hemoglobin preventing oxygen binding.
D)  increases oxygen unloading at the cells.E) All of the above
F) C) and D)

Question 15

Which of the following is NOT a function of the conducting zone?

Accepted Answer

A)  gas exchange
B)  filtering and cleaning the air
C)  warming and humidifying the air
D)  All of the choices are correct.E) A) and C)
F) A) and D)

Question 16

What condition is caused by large amounts of nitrogen dissolving into the blood due to hyperbaric conditions?

Accepted Answer

A)  nitrogen narcosis
B)  oxygen toxicity
C)  decompression sickness
D)  emphysemaE) C) and D)
F) A) and D)

Question 17

What condition is marked by an accumulation of protein-rich fluid in the lungs due to permeability changes triggered by the inflammatory response to systemic infection?

Accepted Answer

A)  emphysema
B)  chronic obstructive pulmonary disease (COP
D)  
C)  pneumothorax
D)  acute respiratory distress syndrome (ARDS) E) A) and D)
F) A) and C)

Question 18

What is the condition of having low blood oxygen levels?

Accepted Answer

A)  hypocapnia
B)  hypercapnia
C)  hypoxia
D)  hypoxemiaE) C) and D)
F) A) and D)

Question 19

The affinity of hemoglobin for oxygen

Accepted Answer

A)  is greater than the affinity for carbon monoxide.
B)  is increased in methemoglobin.
C)  decreases as the height above sea level increases.
D)  is increased in response to metabolic alkalosis.E) None of the above
F) B) and C)

Question 20

Which muscle's contraction will stimulate inspiration?

Accepted Answer

A)  diaphragm
B)  external intercostals
C)  parasternal intercostals
D)  All of the choices are correct.E) All of the above
F) A) and C)

Exam 16: Respiratory Physiology

Acclimatization to altitude

Correct AnswerverifiedShow Answer

Lung compliance increases as the amount of surfactant in the lung increases.

Correct AnswerverifiedShow Answer

Pulmonary circulation is a ____ resistance and ____ pressure pathway.

Correct AnswerverifiedShow Answer

What condition is caused by large amounts of nitrogen dissolving into the blood due to hyperbaric conditions?

Correct AnswerverifiedShow Answer

Respiratory acidosis results from hyperventilation.

Correct AnswerverifiedShow Answer

The affinity of hemoglobin for oxygen

Correct AnswerverifiedShow Answer

Who's law states that the amount of gas dissolved in a liquid is directly proportional to the partial pressure of the gas?

Correct AnswerverifiedShow Answer

Inhalation and accumulation of particles less than 6 mm in size can cause

Correct AnswerverifiedShow Answer

What condition is marked by an accumulation of protein-rich fluid in the lungs due to permeability changes triggered by the inflammatory response to systemic infection?

Correct AnswerverifiedShow Answer

What is the condition of having low blood oxygen levels?

Correct AnswerverifiedShow Answer

The ventilation/perfusion ratio

Correct AnswerverifiedShow Answer

Obstructive pulmonary diseases often cause the FEV1.0 to be decreased by __________ or more.

Correct AnswerverifiedShow Answer

The enzyme ______ catalyzes the formation of H2CO3 from CO2 and water.

Correct AnswerverifiedShow Answer

In anemia, 2,3-DPG is ________ and oxygen affinity is _________.

Correct AnswerverifiedShow Answer

Carbon monoxide is lethal because it

Correct AnswerverifiedShow Answer

The Bohr effect

Correct AnswerverifiedShow Answer

The production of hemoglobin and red blood cells in bone marrow is controlled by a hormone called thymopoietin.

Correct AnswerverifiedShow Answer

The conducting zone contains all of the following EXCEPT

Correct AnswerverifiedShow Answer

Which muscle's contraction will stimulate inspiration?

Correct AnswerverifiedShow Answer

Which of the following is NOT a function of the conducting zone?

Correct AnswerverifiedShow Answer

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Pulmonary circulation is a resistance and pressure pathway.

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Obstructive pulmonary diseases often cause the FEV_1.0 to be decreased by __________ or more.

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The enzyme ______ catalyzes the formation of H₂CO₃ from CO₂ and water.

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In anemia, 2,3-DPG is and oxygen affinity is _.

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