Question 1

A simple spirometer cannot measure which of the following air volumes?

Accepted Answer

A)   Tidal volume
B)   Vital capacity
C)   Residual volume
D)   Expiratory reserve volumeE) A) and D)
F) None of the above C

Question 2

Respiratory distress syndrome in newborns is caused by

Accepted Answer

A)   lack of surfactant.
B)   lack of a respiratory membrane.
C)   low oxygen concentration.
D)   high oxygen concentration.E) None of the above
F) B) and C)

Question 3

Changes in the respiratory system that accompany aging are

Accepted Answer

A)   thickened mucus.
B)   slowed swallowing reflex.
C)   cilia become less active or vanish.
D)   all of the above.E) A) and C)
F) All of the above

Question 4

Cellular respiration enables cells to harness the energy from oxygen.

Accepted Answer

A) True 
 B)False

Question 5

Gas exchange occurs across alveolar pores.

Accepted Answer

A) True 
 B)False

Question 6

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

Accepted Answer

The answer of The respiratory areas are in the medulla...

Question 7

The nasal conchae create passageways in the nasal cavity called ______.

Accepted Answer

The answer of The nasal conchae create passageways in the...

Question 8

Exposure to secondhand smoke increases risk of

Accepted Answer

A)   damage to the smooth endothelial lining of blood vessels.
B)   platelet activation
C)   abnormal blood clotting.
D)   all of the above.E) All of the above
F) A) and C)

Question 9

The first event in expiration is

Accepted Answer

A)   inter-alveolar pressure increases.
B)   elastic tissues of the lungs, thoracic cage, and abdominal organs recoil.
C)   air is squeezed out of the lungs.
D)   the diaphragm and external intercostal respiratory muscles relax.E) A) and B)
F) B) and D)

Question 10

A flashlight placed just below the eyebrow in a darkened room illuminates the

Accepted Answer

A)   frontal sinus.
B)   maxillary sinus.
C)   sphenoid sinus.
D)   ethmoid sinus.E) A) and D)
F) B) and C)

Question 11

Smokers are more susceptible to respiratory infections because

Accepted Answer

A)   they congregate in small areas to smoke.
B)   their respiratory passages overproduce cilia, to which bacteria cling.
C)   their respiratory passages lose cilia, which would otherwise remove bacteria.
D)   the respiratory passages have too little mucus.E) C) and D)
F) All of the above

Question 12

Coughing reflexes become faster with age.

Accepted Answer

A) True 
 B)False

Question 13

Oxygen plays a minor role in the control of normal respiration because

Accepted Answer

A)   oxygenated blood is 
B)   deoxygenated venous blood is 
C)   oxygenated blood is more sensitive to CO2.
D)   deoxygenated venous blood is 75% saturated.E) A) and B)
F) A) and C)

Question 14

The pharynx is an enlargement at the top of the trachea that houses the vocal cords.

Accepted Answer

A) True 
 B)False  False

Question 15

Peripheral receptors stimulate the respiratory areas, resulting in

Accepted Answer

A)   increased respiratory rate.
B)   decreased respiratory rate.
C)   respiratory collapse.
D)   passive exhalation.E) B) and C)
F) B) and D)

Question 16

A voluntary increase in the rate and depth of breathing is called ______.

Accepted Answer

The answer of A voluntary increase in the rate and...

Question 17

Which of the following bones does not house a sinus?

Accepted Answer

A)   Maxillary
B)   Frontal
C)   Sphenoid
D)   ZygomaticE) All of the above
F) A) and B)

Question 18

The inflation reflex is activated when stretch receptors are stimulated during inspiration.

Accepted Answer

A) True 
 B)False  True

Question 19

The ventral part of the medulla oblongata near the origin of the vagus nerve has

Accepted Answer

A)   baroreceptors
B)   mechanoreceptors
C)   central chemoreceptors
D)   peripheral chemoreceptorsE) A) and B)
F) All of the above

Question 20

At high altitudes, when capillary pressure becomes too high,

Accepted Answer

A)   fluid filters out of the blood and collects in the alveoli (pulmonary edema) .
B)   blood pressure decreases.
C)   decreased breathing and heart rates.
D)   blood pH increases to pathologic levels.E) B) and C)
F) C) and D)

Exam 19: Respiratory System

A simple spirometer cannot measure which of the following air volumes?

Correct AnswerverifiedC

Respiratory distress syndrome in newborns is caused by

Correct AnswerverifiedShow Answer

Changes in the respiratory system that accompany aging are

Correct AnswerverifiedShow Answer

Cellular respiration enables cells to harness the energy from oxygen.

Correct AnswerverifiedShow Answer

Gas exchange occurs across alveolar pores.

Correct AnswerverifiedShow Answer

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

Correct AnswerverifiedShow Answer

The nasal conchae create passageways in the nasal cavity called ______.

Correct AnswerverifiedShow Answer

Exposure to secondhand smoke increases risk of

Correct AnswerverifiedShow Answer

The first event in expiration is

Correct AnswerverifiedShow Answer

A flashlight placed just below the eyebrow in a darkened room illuminates the

Correct AnswerverifiedShow Answer

Smokers are more susceptible to respiratory infections because

Correct AnswerverifiedShow Answer

Coughing reflexes become faster with age.

Correct AnswerverifiedShow Answer

Oxygen plays a minor role in the control of normal respiration because

Correct AnswerverifiedShow Answer

The pharynx is an enlargement at the top of the trachea that houses the vocal cords.

Correct AnswerverifiedFalse

Peripheral receptors stimulate the respiratory areas, resulting in

Correct AnswerverifiedShow Answer

A voluntary increase in the rate and depth of breathing is called ______.

Correct AnswerverifiedShow Answer

Which of the following bones does not house a sinus?

Correct AnswerverifiedShow Answer

The inflation reflex is activated when stretch receptors are stimulated during inspiration.

Correct AnswerverifiedTrue

The ventral part of the medulla oblongata near the origin of the vagus nerve has

Correct AnswerverifiedShow Answer

At high altitudes, when capillary pressure becomes too high,

Correct AnswerverifiedShow Answer

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False

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