Question 1

Cessation of breathing is known as

Accepted Answer

A)  apneA.
B)  dyspnea.
C)  eupnea.
D)  pneumothorax.E) None of the above
F) B) and D)

Question 2

Tissues receive more O2 when the pH is lowered.

Accepted Answer

A) True 
 B)False

Question 3

Ondine's curse is a condition in which involuntary control of breathing is abolished so that patients must remind themselves to breathe.

Accepted Answer

A) True 
 B)False

Question 4

The direct role of blood oxygen levels in controlling respiration is called

Accepted Answer

A)  hypoxic drive.
B)  hypocapnia.
C)  oxygen perfusion.
D)  acidosis.E) C) and D)
F) None of the above

Question 5

Hemoglobin F

Accepted Answer

A)  has a lower affinity for oxygen than hemoglobin A.
B)  contains two alpha and two gamma chains.
C)  binds large amounts of 2,3-DPG.
D)  is increased in sickle-cell anemia.E) A) and B)
F) C) and D)

Question 6

2,3-DPG comes from

Accepted Answer

A)  aerobic respiration in red blood cells.
B)  anaerobic respiration in red blood cells.
C)  type II alveolar cells.
D)  tissues with high amounts of oxygen.E) A) and B)
F) A) and C)

Question 7

Acclimatization to altitude results in increased oxygen loading.

Accepted Answer

A) True 
 B)False

Question 8

Carbon dioxide _____ oxygen unloading and oxygen unloading _______ carbon dioxide transport.

Accepted Answer

A)  increases,improves
B)  increases,worsens
C)  decreases,improves
D)  decreases,worsensE) All of the above
F) None of the above

Question 9

When alveolar ventilation increases,the perfusion of pulmonary arterioles will

Accepted Answer

A)  increase.
B)  decrease.
C)  remain unchanged.D) B) and C)
E) None of the above

Question 10

Activation of the apneustic center would increase tidal volume.

Accepted Answer

A) True 
 B)False

Question 11

Type I alveolar cells secrete pulmonary surfactant.

Accepted Answer

A) True 
 B)False

Question 12

The anatomical dead space

Accepted Answer

A)  is increased by emphysemA.
B)  has a lower concentration of carbon dioxide than atmospheric air.
C)  has a lower concentration of oxygen than atmospheric air.
D)  is comprised of the respiratory zone.E) C) and D)
F) B) and D)

Question 13

Who's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas in the mixture would exert independently?

Accepted Answer

A)  Boyle's Law
B)  Charles Law
C)  Dalton's Law
D)  Henry's LawE) All of the above
F) None of the above

Question 14

Pleural membranes envelop organs within the thoracic cavity.

Accepted Answer

A) True 
 B)False

Question 15

Quiet expiration will increase intrapulmonary pressure to about +3 mm Hg above atmospheric pressure.

Accepted Answer

A) True 
 B)False

Question 16

The exchange of chloride ions for bicarbonate through tissue capillaries is called the

Accepted Answer

A)  chloride shift.
B)  Bohr effect.
C)  oxygen toxicity.
D)  acidosis.E) A) and B)
F) A) and C)

Question 17

According to who's law,is the pressure in a small alveolus greater than a large alveolus as long as the surface tension is equal?

Accepted Answer

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

Question 18

A lower affinity for oxygen will decrease oxygen unloading to tissues.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following is NOT a component of respiration?

Accepted Answer

A)  gas exchange
B)  oxygen utilization
C)  speech
D)  ventilationE) All of the above
F) A) and C)

Question 20

The volume of gas remaining in the lungs after a maximum expiration is the

Accepted Answer

A)  tidal volume.
B)  vital capacity.
C)  inspiratory reserve volume.
D)  residual volume.E) All of the above
F) A) and C)

Exam 16: Respiratory Physiology

Acclimatization to altitude results in increased oxygen loading.

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The anatomical dead space

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Carbon dioxide _____ oxygen unloading and oxygen unloading _______ carbon dioxide transport.

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Which of the following is NOT a component of respiration?

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Who's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas in the mixture would exert independently?

Correct AnswerverifiedShow Answer

Quiet expiration will increase intrapulmonary pressure to about +3 mm Hg above atmospheric pressure.

Correct AnswerverifiedShow Answer

Ondine's curse is a condition in which involuntary control of breathing is abolished so that patients must remind themselves to breathe.

Correct AnswerverifiedShow Answer

The exchange of chloride ions for bicarbonate through tissue capillaries is called the

Correct AnswerverifiedShow Answer

Hemoglobin F

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2,3-DPG comes from

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The volume of gas remaining in the lungs after a maximum expiration is the

Correct AnswerverifiedShow Answer

Type I alveolar cells secrete pulmonary surfactant.

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Activation of the apneustic center would increase tidal volume.

Correct AnswerverifiedShow Answer

Tissues receive more O2 when the pH is lowered.

Correct AnswerverifiedShow Answer

Pleural membranes envelop organs within the thoracic cavity.

Correct AnswerverifiedShow Answer

The direct role of blood oxygen levels in controlling respiration is called

Correct AnswerverifiedShow Answer

Cessation of breathing is known as

Correct AnswerverifiedShow Answer

When alveolar ventilation increases,the perfusion of pulmonary arterioles will

Correct AnswerverifiedShow Answer

A lower affinity for oxygen will decrease oxygen unloading to tissues.

Correct AnswerverifiedShow Answer

According to who's law,is the pressure in a small alveolus greater than a large alveolus as long as the surface tension is equal?

Correct AnswerverifiedShow Answer

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Carbon dioxide _ oxygen unloading and oxygen unloading ___ carbon dioxide transport.

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Tissues receive more O₂ when the pH is lowered.

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