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When the diaphragm contracts, _______. 1)
A) it lifts the rib cage
B) it rises in the thoracic cavity
C) it flattens out
D) it flattens out and it rises in the thoracic cavity
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it flattens out
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Which of the following is a passive process? 2)
A) inspiration during exercise B) expiration
C) inspiration D) expiration during exercise
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expiration
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What is the driving force for the movement of air into the lungs? 3)
A) resistance generated in the blood vessels B) the pressure gradient
C) the pumping of the heart D) the diffusion of gases
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the pressure gradien
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Which of the following describes the volume of air exhaled during passive breathing? 4)
A) tidal volume plus expiratory reserve volume
B) tidal volume plus residual volume
C) expiratory reserve volume
D) tidal volume
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tidal volume
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What is the difference between TLC and VC? 5)
A) VC includes TV. B) VC includes RV.
C) TLC includes RV. D) TLC includes TV.
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TLC includes RV.
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The minute ventilation is _______. 6)
A) the amount of air left in the lungs after 1 minute
B) calculated by multiplying the rate of respiration times TV
C) the amount of air forcefully exhaled in 1 minute
D) the amount of air forcefully inhaled in 1 minute
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calculated by multiplying the rate of respiration times TV
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Under normal conditions, the forced expiratory volume is normally _______. 7)
A) 75-85% of the vital capacity B) 50-60% of the total lung capacity
C) 50-60% of the vital capacity D) 75-85% of the total lung capacity
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75-85% of the vital capacity
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When the radius of the airway was decreased, _______. 8)
A) residual volume decreased
B) residual volume decreased and expiratory reserve volume decreased
C) tidal volume increased
D) vital capacity increased
E) expiratory reserve volume decreased
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expiratory reserve volume decreased
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During forced exhalation, _______. 9)
A) the external intercostals contract
B) the diaphragm contracts
C) the internal intercostals contract
D) the diaphragm, the internal intercostals and the external intercostals contract
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the internal intercostals contract
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Why is normal exhalation passive? 10)
A) Respiratory muscles are relaxing.
B) Respiratory muscles are relaxing and elastic tissue in the lungs recoils.
C) The diaphragm is involuntarily controlled.
D) Elastic tissue in the lungs recoils.
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) Respiratory muscles are relaxing and elastic tissue in the lungs recoils
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With emphysema, the muscles that contract with normal exhalation include which of the
following?
11)
A) internal intercostals
B) external intercostals
C) internal intercostals and abdominal muscles
D) external intercostals and abdominal muscles
E) abdominal muscles
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internal intercostals and abdominal muscles
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During an acute asthma attack, the obstruction is caused by _______. 12)
A) a spasm of the diaphragm B) destruction of the walls of the alveoli
C) bronchiole smooth muscle spasms D) loss of elastic recoil
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bronchiole smooth muscle spasms
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Which of the following would increase with exercise? 13)
A) frequency of breathing
B) tidal volume
C) minute volume
D) tidal volume and frequency of breathing
E) tidal volume, frequency of breathing and minute volume
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tidal volume, frequency of breathing and minute volume
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Which of the following is(are) obstructive conditions? 14)
A) an acute asthma attack
B) emphysema
C) exercise
D) emphysema and an acute asthma attack
E) emphysema, an acute asthma attack and exercise
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emphysema and an acute asthma attack
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Which of the following resulted in an increase in tidal volume above the normal value? 15)
A) moderate exercise, acute asthma attack plus inhaler and emphysema
B) moderate exercise
C) emphysema
D) acute asthma attack plus inhaler
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moderate exercise
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A normal FEV1% was seen with _______. 16)
A) acute asthma attack
B) acute asthma attack plus inhaler
C) emphysema
D) emphysema, acute asthma attack and acute asthma attack plus inhaler
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acute asthma attack plus inhaler
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With an acute asthma attack, ________________ increased when compared to normal values. 17)
A) FVC B) ERV C) RV D) TV
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RV
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Without surfactant, _______. 18)
A) the alveoli would collapse
B) the surface tension of the liquid in the alveoli would be less and the alveoli would collapse
C) the surface tension of the liquid in the alveoli would be greater and the alveoli would collapse
D) the surface tension of the liquid in the alveoli would be greater
E) the surface tension of the liquid in the alveoli would be less
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the surface tension of the liquid in the alveoli would be greater and the alveoli would collapse
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The pressure in the pleural cavity is called the _______. 19)
A) intrapulmonary pressure B) transpulmonary pressure
C) intrapleural pressure D) interpleural pressure
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intrapleural pressure
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The pressure in the plural cavity is _______. 20)
A) less than the pressure in the alveoli and less than atmospheric pressure
B) less than the pressure in the alveoli
C) greater than the pressure in the alveoli
D) less than atmospheric pressure
E) greater than the pressure in the alveoli and less than atmospheric pressure
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less than the pressure in the alveoli and less than atmospheric pressure
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In this activity, the pressure in the pleural cavity would be located _______. 21)
A) between the bell jar and the outer wall of the lung
B) below the diaphragm
C) in the simulated lungs
D) in the valve
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between the bell jar and the outer wall of the lung
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Which amount of surfactant resulted in the greatest amount of airflow? 22)
A) 0
B) 4
C) 2
D) Amounts 2 and 4 gave the same airflow
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4
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How did the pressure in the left lung change when the valve was opened? 23)
A) The pressure in the pleural cavity equalized with the atmospheric pressure.
B) It went from a positive number to a negative number and the pressure in the pleural cavity
equalized with the atmospheric pressure.
C) It went from a positive number to a negative number.
D) It went from a negative number to zero and the pressure in the pleural cavity equalized with
the atmospheric pressure.
E) It went from a negative number to zero.
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It went from a negative number to zero and the pressure in the pleural cavity equalized with the atmospheric pressure
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Which of the following definitions is INCORRECT? 24)
A) Atelectasis is a collapsed lung.
B) The intrapleural space is the pleural cavity.
C) A pneumothorax is caused by allowing air from the atmosphere to enter the alveoli.
D) Surfactant is a detergent-like substance that decreases the surface tension of a liquid.
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A pneumothorax is caused by allowing air from the atmosphere to enter the alveoli.
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When the left lung collapsed, the total airflow _______.
A) was cut in half
B) did not change
C) went to zero
D) doubled in value
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was cut in half
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