Question 1

The ____________________ nerve supplies the diaphragm.

Accepted Answer

The answer of The ____________________ nerve supplies the diaphragm....

Question 2

MATCHING
Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once.
-the maximum volume of air that can be inspired at the end of a normal expiration

Accepted Answer

A)  vital capacity
B)  respiratory rate
C)  FEV1
D)  tidal volume
E)  residual volumeF) total lung capacityG) functional residual capacityH) alveolar ventilationI) pulmonary ventilationJ) inspiratory reserve volumeK) expiratory reserve volumeL) inspiratory capacityM) anatomic dead space volumeN) F) and K)
O) K) and L)

Question 3

Which factor would result in bronchoconstriction?

Accepted Answer

A)   sympathetic stimulation.
B)   secretion of acetylcholine
C)   epinephrine secretion.
D)   increased carbon dioxide concentration.
E)   none of these answers.F) B) and D)
G) None of the above

Question 4

Select the incorrect statement about hemoglobin.

Accepted Answer

A)   It combines with oxygen at the lungs.
B)   It contains iron.
C)   It forms an irreversible association with oxygen.
D)   It is located inside the red blood cell.
E)   Its globin portion is a polypeptide.F) B) and C)
G) C) and D)

Question 5

The respiratory quotient is the ratio of ____________________ to ____________________.

Accepted Answer

CO₂ produc...

Question 6

Without pulmonary surfactant,

Accepted Answer

A)   small alveoli would tend to collapse.
B)   larger alveoli would tend to empty into smaller alveoli.
C)   all alveoli would be easier to inflate.
D)   the surface tension in the alveoli would be reduced.
E)   inspirations would be easier.F) A) and D)
G) A) and E)

Question 7

Inspiratory events occur because

Accepted Answer

A)   the air pressure in the alveoli is greater than that of the atmosphere.
B)   the air pressure in the alveoli is less than that of the atmosphere.
C)   the volume of the thoracic cavity increases.
D)   both (a)  and (c)  above.
E)   both (b)  and (c)  aboveF) A) and B)
G) All of the above

Question 8

Which skeletal muscle serves as an accessory respiratory muscle?

Accepted Answer

A)   rectus abdominus.
B)   diaphragm.
C)   external intercostal.
D)   internal intercostal.
E)   none of the aboveF) All of the above
G) C) and E)

Question 9

Which of the following is not a function of the respiratory system?

Accepted Answer

A)   transports O2 to the tissues
B)   contributes to maintenance of normal acid-base balance
C)   provides a route for heat and water elimination
D)   enables speech, singing, and other vocalization
E)   removes, modifies, activates, or inactivates various materials passing through the pulmonary circulationF) B) and D)
G) A) and B)

Question 10

Indicate the effect the following changes would have on oxygen release from Hb.
-the oxygen-Hb dissociation curve has shifted down and to the right

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 rateD) B) and C)
E) A) and B)

Question 11

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram.
-total lung capacity

Accepted Answer

The answer of  
The following questions refer to the...

Question 12

The atmospheric PO2  is approximately

Accepted Answer

A)   25 mmHg.
B)   120 mmHg.
C)   160 mmHg.
D)   220 mmHg.
E)   the same as for nitrogen.F) B) and E)
G) B) and D)

Question 13

The residual volume

Accepted Answer

A)   helps prevent lung collapse.
B)   is the normal volume of air inhaled.
C)   is the normal volume of air exhaled.
D)   is the maximum volume of air that can be inspired.
E)   is the minimum volume of air that can be inspired.F) B) and D)
G) All of the above

Question 14

MATCHING
Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once.
-the extra volume of air that can be maximally inspired over and above the tidal volume

Accepted Answer

A)  vital capacity
B)  respiratory rate
C)  FEV1
D)  tidal volume
E)  residual volumeF) total lung capacityG) functional residual capacityH) alveolar ventilationI) pulmonary ventilationJ) inspiratory reserve volumeK) expiratory reserve volumeL) inspiratory capacityM) anatomic dead space volumeN) C) and K)
O) E) and F)

Question 15

The partial pressure of oxygen in the pulmonary veins

Accepted Answer

A)   is about 100 mmHg.
B)   equivalent to alveolar partial pressure.
C)   is dramatically different than pulmonary arteries' partial pressure
D)   both (a)  and (b)  above.
E)   all of these answers.F) A) and B)
G) B) and C)

Question 16

Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Accepted Answer

A)   a higher partial pressure of oxygen in the atmosphere.
B)   an abnormally high partial pressure of carbon dioxide in the atmosphere.
C)   a reduced partial pressure of carbon dioxide in the atmosphere.
D)   a low pulmonary capillary, partial pressure of oxygen.
E)   none of these answers.F) A) and B)
G) A) and C)

Question 17

During inspiration,

Accepted Answer

A)   intra-alveolar pressure falls below atmospheric pressure.
B)   the diaphragm contracts.
C)   the internal intercostal muscles contract.
D)   both (a)  and (b)  above.
E)   all of these answers.F) B) and D)
G) All of the above

Question 18

Contraction of the external ____________________ muscles elevates the ribs.

Accepted Answer

The answer of Contraction of the external ____________________ muscles elevates...

Question 19

A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Accepted Answer

A)   3,500 ml/minute.
B)   3,920 ml/minute.
C)   4,260 ml/minute.
D)   5,600 ml/minute.
E)   6,240 ml/minute.F) A) and D)
G) B) and C)

Question 20

Pulmonary ventilation is another name for the mechanical act of ____________________.

Accepted Answer

The answer of Pulmonary ventilation is another name for the...

Exam 12: The Respiratory System

Inspiratory events occur because

Correct Answer
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Which of the following is not a function of the respiratory system?

Correct Answer
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During inspiration,

Correct Answer
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The atmospheric PO₂ is approximately

Correct Answer
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Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Correct Answer
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The respiratory quotient is the ratio of to .

Correct Answer
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CO₂ produc...
View Answer

Which factor would result in bronchoconstriction?

Correct Answer
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Correct Answer
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Select the incorrect statement about hemoglobin.

Correct Answer
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The residual volume

Correct Answer
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Pulmonary ventilation is another name for the mechanical act of ____________________.

Correct Answer
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Correct Answer
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Without pulmonary surfactant,

Correct Answer
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The partial pressure of oxygen in the pulmonary veins

Correct Answer
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Contraction of the external ____________________ muscles elevates the ribs.

Correct Answer
verified

Indicate the effect the following changes would have on oxygen release from Hb. -the oxygen-Hb dissociation curve has shifted down and to the right

Correct Answer
verified

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram. -total lung capacity

Correct Answer
verified

Which skeletal muscle serves as an accessory respiratory muscle?

Correct Answer
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A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Correct Answer
verified

The ____________________ nerve supplies the diaphragm.

Correct Answer
verified

Exam 12: The Respiratory System

Inspiratory events occur because

Correct AnswerverifiedShow Answer

Which of the following is not a function of the respiratory system?

Correct AnswerverifiedShow Answer

During inspiration,

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The atmospheric PO2 is approximately

Correct AnswerverifiedShow Answer

Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Correct AnswerverifiedShow Answer

The respiratory quotient is the ratio of ____________________ to ____________________.

Correct AnswerverifiedCO2 produc...View AnswerShow Answer

Which factor would result in bronchoconstriction?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Select the incorrect statement about hemoglobin.

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The residual volume

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Pulmonary ventilation is another name for the mechanical act of ____________________.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Without pulmonary surfactant,

Correct AnswerverifiedShow Answer

The partial pressure of oxygen in the pulmonary veins

Correct AnswerverifiedShow Answer

Contraction of the external ____________________ muscles elevates the ribs.

Correct AnswerverifiedShow Answer

Indicate the effect the following changes would have on oxygen release from Hb. -the oxygen-Hb dissociation curve has shifted down and to the right

Correct AnswerverifiedShow Answer

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram. -total lung capacity

Correct AnswerverifiedShow Answer

Which skeletal muscle serves as an accessory respiratory muscle?

Correct AnswerverifiedShow Answer

A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Correct AnswerverifiedShow Answer

The ____________________ nerve supplies the diaphragm.

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
verified

The atmospheric PO₂ is approximately

Correct Answer
verified

Correct Answer
verified

The respiratory quotient is the ratio of to .

Correct Answer
verified
CO₂ produc...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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