Question 1

The alveolar ventilation rate is the best index of effective ventilation.

Accepted Answer

A) True 
 B)False

Question 2

The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase.

Accepted Answer

A) True 
 B)False

Question 3

The functions of the nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air.

Accepted Answer

A) True 
 B)False

Question 4

Surfactant helps to prevent the alveoli from collapsing by ________.

Accepted Answer

A)   humidifying the air before it enters
B)   protecting the surface of alveoli from dehydration and other environmental variations
C)   warming the air before it enters
D)   interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluidE) A) and B)
F) A) and C)

Question 5

Match the following:
-TV + IRV + ERV + RV.

Accepted Answer

A)  Inspiratory capacity
B)  Total lung capacity
C)  Vital capacity
D)  Functional residual capacityE) A) and B)
F) A) and C)

Question 6

Atelectasis (lung collapse)renders the lung useless for ventilation.

Accepted Answer

A) True 
 B)False

Question 7

Increased temperature results in decreased O2 unloading from hemoglobin.

Accepted Answer

A) True 
 B)False

Question 8

Oxygenated hemoglobin releases oxygen more readily when the pH is more basic.

Accepted Answer

A) True 
 B)False

Question 9

Infant respiratory distress syndrome (IRDS)is a condition peculiar to premature babies.In IRDS insufficient surfactant is produced.What does this cause and how is it treated?

Accepted Answer

Too little surfactant results in increas...

Question 10

The local matching of blood flow with ventilation is ________.

Accepted Answer

A)   ventilation-perfusion coupling
B)   the Bohr effect
C)   the Haldane effect
D)   chloride shiftingE) A) and D)
F) B) and C)

Question 11

Which of the following is NOT a stimulus for breathing?

Accepted Answer

A)   rising blood pressure
B)   arterial PO2 below 60 mm Hg
C)   acidosis resulting from CO2 retention
D)   rising carbon dioxide levelsE) A) and B)
F) A) and C)

Question 12

The parietal pleura lines the thoracic wall.

Accepted Answer

A) True 
 B)False

Question 13

How will the lungs compensate for an acute rise in the partial pressure of CO2 in arterial blood?

Accepted Answer

Respirator...

Question 14

Distinguish among anemic,ischemic (stagnant),histotoxic,and hypoxemic hypoxia.

Accepted Answer

Anemic hypoxia reflects poor oxygen deli...

Question 15

Which of the following anchor(s) the vocal folds?

Accepted Answer

A)   cuneiform cartilages
B)   arytenoid cartilages
C)   cricoid cartilage
D)   corniculate cartilagesE) B) and D)
F) A) and B)

Question 16

After a long scuba diving session on a Caribbean reef,Carl boards a plane to Dallas.He begins to feel pain in his elbow on the flight back to Dallas.What is happening to him?

Accepted Answer

Carl is experiencing decompression sickn...

Question 17

Which center is located in the pons?

Accepted Answer

A)   inspiratory center
B)   pacemaker neuron center
C)   pontine respirator group (PRG) 
D)   expiratory centerE) B) and D)
F) A) and B)

Question 18

In chronic bronchitis,mucus production is decreased and this leads to the inflammation and fibrosis of the mucosal lining of the bronchial tree.

Accepted Answer

A) True 
 B)False

Question 19

Figure 22.1
Using Figure 22.1, match the following:
-Carina of trachea.

Accepted Answer

A)  E
B)  A
C)  C
D)  B
E)  DF) A) and B)
G) All of the above

Question 20

Briefly differentiate between atmospheric pressure,intrapulmonary pressure,and intrapleural pressure.Which of these is always negative in a healthy individual during normal breathing? What happens if intrapleural pressure becomes equal to atmospheric pressure?

Accepted Answer

Atmospheric pressure is the pressure exe...

Exam 22: The Respiratory System

The largest amount of carbon dioxide is transported in the bloodstream in the form of carbonic anhydrase.

Correct AnswerverifiedShow Answer

Increased temperature results in decreased O2 unloading from hemoglobin.

Correct AnswerverifiedShow Answer

In chronic bronchitis,mucus production is decreased and this leads to the inflammation and fibrosis of the mucosal lining of the bronchial tree.

Correct AnswerverifiedShow Answer

Oxygenated hemoglobin releases oxygen more readily when the pH is more basic.

Correct AnswerverifiedShow Answer

Surfactant helps to prevent the alveoli from collapsing by ________.

Correct AnswerverifiedShow Answer

Match the following: -TV + IRV + ERV + RV.

Correct AnswerverifiedShow Answer

Atelectasis (lung collapse)renders the lung useless for ventilation.

Correct AnswerverifiedShow Answer

How will the lungs compensate for an acute rise in the partial pressure of CO2 in arterial blood?

Correct AnswerverifiedRespirator...View AnswerShow Answer

The alveolar ventilation rate is the best index of effective ventilation.

Correct AnswerverifiedShow Answer

The local matching of blood flow with ventilation is ________.

Correct AnswerverifiedShow Answer

After a long scuba diving session on a Caribbean reef,Carl boards a plane to Dallas.He begins to feel pain in his elbow on the flight back to Dallas.What is happening to him?

Correct AnswerverifiedCarl is experiencing decompression sickn...View AnswerShow Answer

The functions of the nasal conchae are to enhance the air turbulence in the cavity and to increase the mucosal surface area exposed to the air.

Correct AnswerverifiedShow Answer

Infant respiratory distress syndrome (IRDS)is a condition peculiar to premature babies.In IRDS insufficient surfactant is produced.What does this cause and how is it treated?

Correct AnswerverifiedToo little surfactant results in increas...View AnswerShow Answer

Which of the following anchor(s) the vocal folds?

Correct AnswerverifiedShow Answer

Which center is located in the pons?

Correct AnswerverifiedShow Answer

Briefly differentiate between atmospheric pressure,intrapulmonary pressure,and intrapleural pressure.Which of these is always negative in a healthy individual during normal breathing? What happens if intrapleural pressure becomes equal to atmospheric pressure?

Correct AnswerverifiedAtmospheric pressure is the pressure exe...View AnswerShow Answer

Figure 22.1 Using Figure 22.1, match the following: -Carina of trachea.

Correct AnswerverifiedShow Answer

Which of the following is NOT a stimulus for breathing?

Correct AnswerverifiedShow Answer

Distinguish among anemic,ischemic (stagnant),histotoxic,and hypoxemic hypoxia.

Correct AnswerverifiedAnemic hypoxia reflects poor oxygen deli...View AnswerShow Answer

The parietal pleura lines the thoracic wall.

Correct AnswerverifiedShow Answer

Correct Answer
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Increased temperature results in decreased O₂ unloading from hemoglobin.

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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How will the lungs compensate for an acute rise in the partial pressure of CO₂ in arterial blood?

Correct Answer
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Respirator...
View Answer

Correct Answer
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Correct Answer
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Correct Answer
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Carl is experiencing decompression sickn...
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Correct Answer
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Too little surfactant results in increas...
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Correct Answer
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Correct Answer
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Correct Answer
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Atmospheric pressure is the pressure exe...
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Correct Answer
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Correct Answer
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Correct Answer
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Anemic hypoxia reflects poor oxygen deli...
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Correct Answer
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