Question 1

The partial pressure gradient of oxygen determines the direction of the movement of this respiratory gas.

Accepted Answer

A) True 
 B)False

Question 2

Each of the following factors affects the efficiency of pulmonary gas exchange EXCEPT:

Accepted Answer

A)   partial pressure of carbon dioxide in the blood of the pulmonary capillaries.
B)   thickness of the respiratory membrane.
C)   surface area of the respiratory membrane.
D)   diameter of an alveolus.E) All of the above
F) A) and D)

Question 3

The triangular depression in the medial surface of each lung, where blood vessels and the primary bronchi enter, is the:

Accepted Answer

A)   lobule.
B)   apex.
C)   hilum.
D)   base.E) A) and B)
F) None of the above

Question 4

What part of the following description is INCORRECT? Contraction of the diaphragm and external intercostal muscles leads to increased volume in the thoracic cavity and the lungs. The increase in volume leads to an increase in intrapulmonary pressure causing air to move into
The lungs.

Accepted Answer

A)   The contraction of the diaphragm and external intercostal muscles leads to a decrease in volume, not an increase in volume.
B)   Increases in volume lead to a decrease in pressure, not an increase in pressure.
C)   The relaxation, not contraction, of the diaphragm and external intercostal muscles leads to inhalation.
D)   Increased volume and decreased pressure cause air to leave the lungs, rather than enter the lungs.E) B) and C)
F) None of the above

Question 5

Differentiate terminal bronchioles from respiratory bronchioles.

Accepted Answer

Terminal bronchioles branch from bronchi...

Question 6

Air moves out of the lungs when the pressure inside the lungs is:

Accepted Answer

A)   greater than atmospheric pressure.
B)   less than atmospheric pressure.
C)   less than intrapleural pressure.
D)   equal to atmospheric pressure.E) A) and C)
F) All of the above

Question 7

The volume that remains in the lungs after a forced expiration is the:

Accepted Answer

A)   residual volume.
B)   functional residual capacity.
C)   vital capacity.
D)   dead space volume.E) B) and C)
F) None of the above

Question 8

Respiratory acidosis results from:

Accepted Answer

A)   hypoxia.
B)   hypoventilation.
C)   hyperventilation.
D)   hypocapnia.E) A) and B)
F) B) and C)

Question 9

Eupnea is controlled by the:

Accepted Answer

A)   glossopharyngeal nerve.
B)   apneustic center.
C)   respiratory rhythm generator (RRG) .
D)   pneumotaxic center.E) A) and C)
F) None of the above

Question 10

Which law states that each gas in a mixture exerts its own pressure?

Accepted Answer

A)   Henry's law
B)   Boyle's law
C)   Charles' law
D)   Dalton's lawE) C) and D)
F) A) and C)

Question 11

The process of respiration that moves air into and out of the lungs is:

Accepted Answer

A)   tissue gas exchange.
B)   pulmonary ventilation.
C)   pulmonary gas exchange.
D)   gas transport.E) B) and C)
F) A) and B)

Question 12

Which of the following is NOT part of the upper respiratory tract?

Accepted Answer

A)   pharynx
B)   larynx
C)   nose
D)   tracheaE) A) and B)
F) A) and C)

Question 13

What happens to the lungs if intrapleural pressure equals or increases above atmospheric pressure?

Accepted Answer

A)   burst
B)   inhalation
C)   collapse
D)   overinflationE) A) and C)
F) B) and C)

Question 14

Carbon dioxide and water combine to form:

Accepted Answer

A)   nitric acid.
B)   carbonic acid.
C)   carbaminohemoglobin.
D)   hydrochloric acid.E) All of the above
F) B) and C)

Question 15

A fully saturated hemoglobin molecule transports:

Accepted Answer

A)   1 molecule of oxygen.
B)   2 molecules of oxygen.
C)   8 molecules of oxygen.
D)   4 molecules of oxygen.E) A) and C)
F) C) and D)

Question 16

What cells clean and digest debris entering the alveoli?

Accepted Answer

A)   alveolar macrophages
B)   goblet cells
C)   type I alveolar cells
D)   type II alveolar cellsE) None of the above
F) A) and D)

Question 17

Each secondary bronchus supplies air to a:

Accepted Answer

A)   hilum.
B)   lobule of the lung.
C)   bronchopulmonary segment.
D)   lobe of the lung.E) None of the above
F) A) and C)

Question 18

Upon removal of the larynx, a person would no longer be able to:

Accepted Answer

A)   swallow.
B)   cough.
C)   produce sounds.
D)   sneeze.E) All of the above
F) C) and D)

Question 19

The respiratory system does NOT function in:

Accepted Answer

A)   speech production.
B)   acid -base homeostasis.
C)   blood cell production.
D)   odor detection.E) None of the above
F) All of the above

Question 20

What does Boyle's law state about pressure and volume at a constant temperature and a constant pressure?

Accepted Answer

A)   Pressure and volume will both increase together or both decrease together.
B)   Pressure increases when volume decreases.
C)   Pressure and volume will both increase as temperature and pressure increase.
D)   Pressure and volume will both decrease as temperature and pressure decrease.E) B) and D)
F) B) and C)

Exam 21: The Respiratory System

The process of respiration that moves air into and out of the lungs is:

Correct AnswerverifiedShow Answer

Which of the following is NOT part of the upper respiratory tract?

Correct AnswerverifiedShow Answer

The triangular depression in the medial surface of each lung, where blood vessels and the primary bronchi enter, is the:

Correct AnswerverifiedShow Answer

Each of the following factors affects the efficiency of pulmonary gas exchange EXCEPT:

Correct AnswerverifiedShow Answer

Respiratory acidosis results from:

Correct AnswerverifiedShow Answer

Each secondary bronchus supplies air to a:

Correct AnswerverifiedShow Answer

Air moves out of the lungs when the pressure inside the lungs is:

Correct AnswerverifiedShow Answer

Differentiate terminal bronchioles from respiratory bronchioles.

Correct AnswerverifiedTerminal bronchioles branch from bronchi...View AnswerShow Answer

The respiratory system does NOT function in:

Correct AnswerverifiedShow Answer

The partial pressure gradient of oxygen determines the direction of the movement of this respiratory gas.

Correct AnswerverifiedShow Answer

A fully saturated hemoglobin molecule transports:

Correct AnswerverifiedShow Answer

Eupnea is controlled by the:

Correct AnswerverifiedShow Answer

Carbon dioxide and water combine to form:

Correct AnswerverifiedShow Answer

What happens to the lungs if intrapleural pressure equals or increases above atmospheric pressure?

Correct AnswerverifiedShow Answer

The volume that remains in the lungs after a forced expiration is the:

Correct AnswerverifiedShow Answer

Which law states that each gas in a mixture exerts its own pressure?

Correct AnswerverifiedShow Answer

What part of the following description is INCORRECT? Contraction of the diaphragm and external intercostal muscles leads to increased volume in the thoracic cavity and the lungs. The increase in volume leads to an increase in intrapulmonary pressure causing air to move into The lungs.

Correct AnswerverifiedShow Answer

What does Boyle's law state about pressure and volume at a constant temperature and a constant pressure?

Correct AnswerverifiedShow Answer

Upon removal of the larynx, a person would no longer be able to:

Correct AnswerverifiedShow Answer

What cells clean and digest debris entering the alveoli?

Correct AnswerverifiedShow Answer

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Terminal bronchioles branch from bronchi...
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