Question 1

Tidal volume + inspiratory reserve volume is called

Accepted Answer

A)   tidal volume.
B)   vital capacity.
C)   inspiratory reserve volume.
D)   inspiratory capacity.
E)   functional residual capacity.F) C) and E)
G) A) and D)

Question 2

Which pressure is constant during the respiratory cycle?

Accepted Answer

A)   intra -alveolar pressure
B)   rebound pressure (elastic recoil) 
C)   transpulmonary pressure
D)   intrapleural pressure
E)   atmospheric pressureF) C) and D)
G) B) and E)

Question 3

Which of the following chemicals will NOT result in a decrease in airway resistance?

Accepted Answer

A)   epinephrine
B)   norepinephrine
C)   carbon dioxide
D)   histamine
E)   bronchodilatorsF) A) and D)
G) D) and E)

Question 4

The force that moves air into and out of the lungs is the difference in pressure between the atmosphere and alveolus.

Accepted Answer

A) True 
 B)False

Question 5

Under normal conditions, expiration is a(n) (active / passive) process.

Accepted Answer

The answer of Under normal conditions, expiration is a(n) (active...

Question 6

Which of the following is a measure of the distending force across the lungs?

Accepted Answer

A)   difference between intra -alveolar pressure and atmospheric pressure
B)   transpulmonary pressure
C)   intrapleural pressure
D)   intra -alveolar pressure
E)   atmospheric pressureF) B) and E)
G) None of the above

Question 7

Which pressure changes with the phases of respiration from a negative value during inspiration and a positive value during expiration?

Accepted Answer

A)   atmospheric pressure
B)   intra -alveolar pressure
C)   rebound pressure (elastic recoil) 
D)   transpulmonary pressure
E)   intrapleural pressureF) B) and E)
G) D) and E)

Question 8

What is the volume of air present in the lungs when the lungs are at rest (in between breaths) ?

Accepted Answer

A)   zero
B)   tidal volume
C)   residual volume
D)   functional residual capacity
E)   total lung capacityF) B) and C)
G) A) and B)

Question 9

Equilibration of pressure between the intrapleural space and the alveoli will lead to which of the following?

Accepted Answer

A)   chronic obstructive pulmonary disease
B)   restrictive pulmonary disease
C)   air moving into the lungs
D)   air moving out of the lungs
E)   a pneumothorax (the lung will collapse) F) None of the above
G) C) and D)

Question 10

-In Figure 16.1, how many mL is the expiratory reserve volume?

Accepted Answer

A)   2800
B)   600
C)   2200
D)   1300
E)   1700F) A) and B)
G) A) and C)

Question 11

Alveolar macrophages function to engulf pathogens and foreign particles that have been inhaled into the lungs.

Accepted Answer

A) True 
 B)False

Question 12

As the lungs expand, intra -alveolar pressure_______and air moves_______ the lungs.

Accepted Answer

A)   increases : out of
B)   decreases : out of
C)   decreases : into
D)   increases : into
E)   does not change : neither into nor out ofF) All of the above
G) A) and B)

Question 13

Which of the following becomes more abundant deeper into the conducting zone (from bronchi to bronchioles) ?

Accepted Answer

A)   cartilage
B)   cilia
C)   goblet cells
D)   smooth muscle
E)   type I alveolar cellsF) C) and E)
G) D) and E)

Question 14

The upper airway refers to the passageway for air that is located within the head and neck.

Accepted Answer

A) True 
 B)False

Question 15

What is the function of alveolar pores?

Accepted Answer

A)   speed the rate of diffusion
B)   allow for nutrients to reach the alveolar cells
C)   a portal for diapedesis
D)   equalize pressure in the lungs
E)   allow for exhalation of H2O formed during cellular respirationF) A) and B)
G) C) and E)

Question 16

A normal vital capacity is approximately _________mL.

Accepted Answer

A)   1000
B)   4500
C)   100
D)   9000
E)   500F) A) and B)
G) A) and C)

Question 17

What happens to the amount of cartilage in the walls of the respiratory tract as it moves down from the upper conducting zone to the lower respiratory zone?

Accepted Answer

A)   no change
B)   hypertrophies
C)   decreases
D)   thickens
E)   increasesF) A) and E)
G) A) and D)

Question 18

What is the term for the volume of air moved into the lungs every minute?

Accepted Answer

A)   pulmonary ventilation
B)   minute ventilation
C)   total lung capacity
D)   tidal volume
E)   alveolar ventilationF) B) and E)
G) C) and D)

Question 19

The presence of a negative intrapleural pressure at maximum expiration is responsible for which of the following?

Accepted Answer

A)   functional residual volume
B)   residual volume
C)   vital capacity
D)   tidal volume
E)   functional residual capacityF) B) and D)
G) A) and D)

Question 20

What is the significance of the respiratory membrane to facilitate gas exchange?

Accepted Answer

A)   The surface area is increased with this membrane.
B)   Its thickness prohibits the alveoli from pulling away from the capillary.
C)   It is covered with surfactant to accelerate gas exchange.
D)   Epithelial and endothelial cells share a common basement membrane.
E)   All three surfaces are kept moist through interstitial fluid exchange.F) A) and B)
G) None of the above

Exam 16: The Respiratory System: Pulmonary Ventilation

Alveolar macrophages function to engulf pathogens and foreign particles that have been inhaled into the lungs.

Correct AnswerverifiedShow Answer

A normal vital capacity is approximately _________mL.

Correct AnswerverifiedShow Answer

What is the function of alveolar pores?

Correct AnswerverifiedShow Answer

Which pressure changes with the phases of respiration from a negative value during inspiration and a positive value during expiration?

Correct AnswerverifiedShow Answer

The upper airway refers to the passageway for air that is located within the head and neck.

Correct AnswerverifiedShow Answer

What is the significance of the respiratory membrane to facilitate gas exchange?

Correct AnswerverifiedShow Answer

Which of the following is a measure of the distending force across the lungs?

Correct AnswerverifiedShow Answer

-In Figure 16.1, how many mL is the expiratory reserve volume?

Correct AnswerverifiedShow Answer

What is the volume of air present in the lungs when the lungs are at rest (in between breaths) ?

Correct AnswerverifiedShow Answer

What is the term for the volume of air moved into the lungs every minute?

Correct AnswerverifiedShow Answer

As the lungs expand, intra -alveolar pressure_______and air moves_______ the lungs.

Correct AnswerverifiedShow Answer

Tidal volume + inspiratory reserve volume is called

Correct AnswerverifiedShow Answer

Under normal conditions, expiration is a(n) (active / passive) process.

Correct AnswerverifiedShow Answer

Which of the following chemicals will NOT result in a decrease in airway resistance?

Correct AnswerverifiedShow Answer

The presence of a negative intrapleural pressure at maximum expiration is responsible for which of the following?

Correct AnswerverifiedShow Answer

Equilibration of pressure between the intrapleural space and the alveoli will lead to which of the following?

Correct AnswerverifiedShow Answer

Which pressure is constant during the respiratory cycle?

Correct AnswerverifiedShow Answer

The force that moves air into and out of the lungs is the difference in pressure between the atmosphere and alveolus.

Correct AnswerverifiedShow Answer

Which of the following becomes more abundant deeper into the conducting zone (from bronchi to bronchioles) ?

Correct AnswerverifiedShow Answer

What happens to the amount of cartilage in the walls of the respiratory tract as it moves down from the upper conducting zone to the lower respiratory zone?

Correct AnswerverifiedShow Answer

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As the lungs expand, intra -alveolar pressure_and air moves_ the lungs.

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