Question 1

The force responsible for normal resting expiration is supplied by

Accepted Answer

A)   the diaphragm.
B)   external intercostal muscles.
C)   elastic recoil of the lungs.
D)   dilation of bronchial smooth muscle.
E)   sternocleidomastoid muscles.F) A) and B)
G) A) and E)

Question 2

Carbon monoxide bonds to hemoglobin more strongly than does oxygen.

Accepted Answer

A) True 
 B)False

Question 3

Microorganisms removed from incoming air by sticky airway mucus are most likely to be destroyed by

Accepted Answer

A)   toxins in the mucus.
B)   the sweeping action of cilia.
C)   the digestive action of gastric juice.
D)   lack of oxygen.
E)   high heat.F) A) and B)
G) A) and C)

Question 4

Microorganisms trapped in the mucus of the nasal cavity eventually end up in the

Accepted Answer

A)   larynx.
B)   trachea.
C)   stomach.
D)   alveoli.
E)   bronchi.F) A) and C)
G) D) and E)

Question 5

The volume of air that can be expelled from completely filled lungs is called the

Accepted Answer

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

Question 6

A breathing pattern that eliminates too much CO2 is called hyperventilation.

Accepted Answer

A) True 
 B)False

Question 7

________ is a substance secreted by cells in the lungs that reduces surface tension.

Accepted Answer

The answer of ________ is a substance secreted by cells...

Question 8

The additional volume of air that can be inhaled at the end of a resting inspiration is called the

Accepted Answer

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

Question 9

Emphysema is characterized by a decrease in:

Accepted Answer

A)   total surface area of the respiratory membrane.
B)   alveolar wall elasticity.
C)   alveolar capillary networks.
D)   all of these.
E)   none of these.F) A) and E)
G) B) and C)

Question 10

Serous fluid in the pleural cavity tends to hold the visceral and parietal pleural membranes together.

Accepted Answer

A) True 
 B)False

Question 11

The vocal cords are located within the

Accepted Answer

A)   pharynx.
B)   larynx.
C)   trachea.
D)   oral cavity.
E)   nasal cavity.F) All of the above
G) A) and C)

Question 12

The organs of the upper respiratory tract are located outside the thorax.

Accepted Answer

A) True 
 B)False

Question 13

The maximum amount of air a person can exhale after taking the deepest breath possible is a measurement of that person's vital capacity.

Accepted Answer

A) True 
 B)False

Question 14

The respiratory membrane consists of

Accepted Answer

A)   a single thickness of epithelial cells,but not the basement membrane.
B)   a single thickness of epithelial cells and the basement membrane.
C)   two thicknesses of epithelial cells,but not their basement membranes.
D)   two thicknesses of epithelial cells and their basement membranes.
E)   a single thickness of basement membrane.F) C) and D)
G) A) and D)

Question 15

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 16

The condition of newborns called respiratory distress syndrome is caused by

Accepted Answer

A)   lack of surfactant.
B)   lack of a hyaline membrane.
C)   low oxygen concentration in the inspired air.
D)   high oxygen concentration in the inspired air.
E)   thick mucus clogging the airways.F) A) and E)
G) A) and D)

Question 17

The layer of serous membrane that is firmly attached to the surface of a lung is called the visceral ________.

Accepted Answer

The answer of The layer of serous membrane that is...

Question 18

Most of the inspired air eventually ends up in the

Accepted Answer

A)   larynx.
B)   trachea.
C)   stomach.
D)   alveoli.
E)   bronchi.F) All of the above
G) None of the above

Question 19

The left lung has only two lobes,while the right lung has three.

Accepted Answer

A) True 
 B)False

Question 20

Laryngitis is a potentially dangerous condition because it may cause

Accepted Answer

A)   obstruction of the esophagus.
B)   obstruction of the airway.
C)   pressure on the thyroid gland.
D)   inner ear infection.
E)   difficulty swallowing.F) A) and E)
G) A) and D)

Exam 16: Respiratory System

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

Correct AnswerverifiedShow Answer

Most of the inspired air eventually ends up in the

Correct AnswerverifiedShow Answer

The volume of air that can be expelled from completely filled lungs is called the

Correct AnswerverifiedShow Answer

The left lung has only two lobes,while the right lung has three.

Correct AnswerverifiedShow Answer

The maximum amount of air a person can exhale after taking the deepest breath possible is a measurement of that person's vital capacity.

Correct AnswerverifiedShow Answer

Laryngitis is a potentially dangerous condition because it may cause

Correct AnswerverifiedShow Answer

Carbon monoxide bonds to hemoglobin more strongly than does oxygen.

Correct AnswerverifiedShow Answer

Microorganisms trapped in the mucus of the nasal cavity eventually end up in the

Correct AnswerverifiedShow Answer

Microorganisms removed from incoming air by sticky airway mucus are most likely to be destroyed by

Correct AnswerverifiedShow Answer

The vocal cords are located within the

Correct AnswerverifiedShow Answer

________ is a substance secreted by cells in the lungs that reduces surface tension.

Correct AnswerverifiedShow Answer

The respiratory membrane consists of

Correct AnswerverifiedShow Answer

Emphysema is characterized by a decrease in:

Correct AnswerverifiedShow Answer

A breathing pattern that eliminates too much CO2 is called hyperventilation.

Correct AnswerverifiedShow Answer

Serous fluid in the pleural cavity tends to hold the visceral and parietal pleural membranes together.

Correct AnswerverifiedShow Answer

The force responsible for normal resting expiration is supplied by

Correct AnswerverifiedShow Answer

The additional volume of air that can be inhaled at the end of a resting inspiration is called the

Correct AnswerverifiedShow Answer

The condition of newborns called respiratory distress syndrome is caused by

Correct AnswerverifiedShow Answer

The organs of the upper respiratory tract are located outside the thorax.

Correct AnswerverifiedShow Answer

The layer of serous membrane that is firmly attached to the surface of a lung is called the visceral ________.

Correct AnswerverifiedShow Answer

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A breathing pattern that eliminates too much CO₂ is called hyperventilation.

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