Question 1

Use the following key to determine the best answer.
-(1)  alveolar pressure during inspiration;
(2)  alveolar pressure during expiration

Accepted Answer

A)  Choose this if the first item is greater than the second item.
B)  Choose this if the first item is less than the second item.
C)  Choose this if the first item is equal or nearly equal to the second item.D) None of the above
E) All of the above

Question 2

During expiration, the alveolar pressure must be

Accepted Answer

A)   greater than atmospheric pressure.
B)   less than atmospheric pressure.
C)   equal to atmospheric pressure.
D)   greater than pleural pressure.
E)   None of these choices is correct.F) D) and E)
G) All of the above

Question 3

Which of the following molecules acts as a buffer during the chloride shift?

Accepted Answer

A)   carbon dioxide
B)   hemoglobin
C)   carbonic anhydrase
D)   water
E)   bicarbonate ionF) C) and D)
G) A) and B)

Question 4

Use the following two choices.
-increase in pH

Accepted Answer

A)  oxygen-hemoglobin dissociation curve shifts to the right
B)  oxygen-hemoglobin dissociation curve shifts to the leftC) A) and B)
D) undefined

Question 5

Whenever people cry, their nose runs. This is because the _____ drain tears into the nose.

Accepted Answer

A)   nasolacrimal ducts
B)   paranasal sinuses
C)   lacrimal glands
D)   Wharten's ducts
E)   auditory tubeF) B) and D)
G) A) and D)

Question 6

What factors are responsible for the decrease in the volume of the alveoli?

Accepted Answer

A)   compliance and lung recoil
B)   lung recoil and surface tension of water
C)   compliance and surface tension of water
D)   perfusion and lung recoilE) None of the above
F) All of the above

Question 7

__________ is the volume of air inspired during a normal inspiration.

Accepted Answer

The answer of __________ is the volume of air inspired...

Question 8

External respiration refers to

Accepted Answer

A)   atmospheric air coming into the lungs.
B)   gas exchange between the lungs and the blood.
C)   gas exchange in the atmosphere.
D)   gas exchange between the blood and body tissues.
E)   cellular respiration.F) A) and B)
G) A) and C)

Question 9

The ring of cartilage that forms the base of the larynx is the

Accepted Answer

A)   epiglottis.
B)   thyroid cartilage.
C)   cricoid cartilage.
D)   arytenoid cartilage.
E)   cuneiform cartilage.F) All of the above
G) A) and B)

Question 10

-Which of the patients above does not have any abnormal respiratory values?

Accepted Answer

The answer of 
-Which of the patients above does not...

Question 11

Match the term with the appropriate description, answer with the letter preceding the description.
-external nares
"Enter the letter of the correct description below"

Accepted Answer

A)  the floor of the nasal cavity
B)  superior portion of pharynx
C)  a soft process that extends inferiorly from the posterior edge of the soft palate
D)  the opening of the nasal cavity into the pharynx
E)  external openings of the nasal cavityF) A) and B)
G) A) and C)

Question 12

Use the following two choices.
-increase in body temperature

Accepted Answer

A)  oxygen-hemoglobin dissociation curve shifts to the right
B)  oxygen-hemoglobin dissociation curve shifts to the leftC) A) and B)
D) undefined

Question 13

The pitch of the sound produced by the vocal folds is controlled by the

Accepted Answer

A)   frequency of the vibrations.
B)   amplitude of the vibrations.
C)   thickness of the thyroid cartilage.
D)   size of the glottis.
E)   force of air moving past them.F) C) and D)
G) B) and E)

Question 14

Ventilation refers to the

Accepted Answer

A)   movement of air into and out of the lungs.
B)   gas exchange between the blood and the tissues.
C)   transportation of oxygen and carbon dioxide in the blood.
D)   gas exchange between the air in the lungs and the blood.
E)   respiration at the cellular level.F) C) and D)
G) All of the above

Question 15

The chloride shift refers to the

Accepted Answer

A)   effect of chloride ions on the oxygen dissociation curve.
B)   exchange of chloride ions for bicarbonate ions across the red blood cell membrane.
C)   exchange of chloride ions for carbon dioxide across alveolar cell membranes.
D)   effect of chloride ions on hydrogen ion diffusion from red blood cells.
E)   exchange of chloride ions for hemoglobin across the RBC membrane.F) All of the above
G) C) and D)

Question 16

Oxygen is transported in the blood

Accepted Answer

A)   bound to hemoglobin.
B)   bound to albumin.
C)   dissolved in the plasma.
D)   as part of the bicarbonate ion.
E)   dissolved in the plasma and bound to hemoglobin.F) None of the above
G) B) and E)

Question 17

Match the disorder of the respiratory system with the best description.
-pulmonary fibrosis

Accepted Answer

A)  destruction of the alveolar walls
B)  inflammation of the bronchii
C)  inherited disease that affects secretory cells lining the lungs
D)  replacement of lung tissue with fibrous connective tissue
E)  infant stops breathing during sleepF) A) and B)
G) A) and C)

Question 18

Which of the following is NOT a respiratory adaptation to exercise training?

Accepted Answer

A)   vital capacity increases
B)   tidal volume at maximal exercise will increase
C)   increased minute ventilation after training
D)   after training, respiratory rate at rest is lowerE) B) and C)
F) C) and D)

Question 19

Hyperventilation _____ plasma carbon dioxide levels which _____ plasma pH.

Accepted Answer

A)   decreases; decreases
B)   increases; decreases
C)   increases; increases
D)   decreases; increasesE) A) and D)
F) A) and C)

Question 20

Which of the following statements regarding the lungs is correct?

Accepted Answer

A)   The left lung is larger than the right lung.
B)   The left lung contains two lobes while the right lung contains three lobes.
C)   The left lung has more bronchopulmonary segments than the right lung.
D)   Only the right lung has a hilum.
E)   The left lung contains three lobes while the right lung contains two lobes.F) C) and E)
G) B) and D)

Exam 23: Respiratory System

Which of the following molecules acts as a buffer during the chloride shift?

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External respiration refers to

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-Which of the patients above does not have any abnormal respiratory values?

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Use the following key to determine the best answer. -(1) alveolar pressure during inspiration; (2) alveolar pressure during expiration

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__________ is the volume of air inspired during a normal inspiration.

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Oxygen is transported in the blood

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Ventilation refers to the

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The ring of cartilage that forms the base of the larynx is the

Correct AnswerverifiedShow Answer

Whenever people cry, their nose runs. This is because the _____ drain tears into the nose.

Correct AnswerverifiedShow Answer

During expiration, the alveolar pressure must be

Correct AnswerverifiedShow Answer

Use the following two choices. -increase in body temperature

Correct AnswerverifiedShow Answer

The pitch of the sound produced by the vocal folds is controlled by the

Correct AnswerverifiedShow Answer

The chloride shift refers to the

Correct AnswerverifiedShow Answer

What factors are responsible for the decrease in the volume of the alveoli?

Correct AnswerverifiedShow Answer

Match the term with the appropriate description, answer with the letter preceding the description. -external nares "Enter the letter of the correct description below"

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Hyperventilation _____ plasma carbon dioxide levels which _____ plasma pH.

Correct AnswerverifiedShow Answer

Use the following two choices. -increase in pH

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Which of the following is NOT a respiratory adaptation to exercise training?

Correct AnswerverifiedShow Answer

Match the disorder of the respiratory system with the best description. -pulmonary fibrosis

Correct AnswerverifiedShow Answer

Which of the following statements regarding the lungs is correct?

Correct AnswerverifiedShow Answer

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Hyperventilation _ plasma carbon dioxide levels which _ plasma pH.

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