Question 1

During swallowing,the larynx is covered by the ____________________.

Accepted Answer

The answer of During swallowing,the larynx is covered by the...

Question 2

During exhalation,the diaphragm:

Accepted Answer

A)  contracts and moves downward
B)  contracts and moves upward
C)  relaxes and moves downward
D)  relaxes and moves upward

Question 3

Any pathogens or air pollution that reach the alveoli are usually destroyed by:

Accepted Answer

A)  lymphocytes in the pulmonary capillaries
B)  alveolar macrophages
C)  alveolar type I cells
D)  alveolar type II cells

Question 4

The function of serous fluid is to:

Accepted Answer

A)  prevent friction within the alveoli
B)  prevent friction between the pleural membranes
C)  permit diffusion of gases in the alveoli
D)  decrease the surface tension around the pleural membranes

Question 5

Which statement is NOT true of the air pressures involved in breathing?

Accepted Answer

A)  Intrapleural pressure is always below atmospheric pressure.
B)  Atmospheric pressure is highest at sea level.
C)  Intrapulmonic pressure constantly changes during breathing.
D)  Enlargement of the chest cavity causes intrapulmonic pressure to increase.

Question 6

Which statement is NOT true of swallowing?

Accepted Answer

A)  The nasopharynx is blocked by the soft palate.
B)  Swallowing is a reflex regulated by the medulla.
C)  Breathing ceases.
D)  The larynx is blocked by the glottis.

Question 7

The term ventilation means:

Accepted Answer

A)  movement of air through the upper respiratory tract
B)  movement of air through the lower respiratory tract
C)  exhaling as forcefully as possible to empty the alveoli
D)  movement of air into and out of the alveoli

Question 8

If carbon dioxide accumulates in body fluids,the pH of the fluid will:

Accepted Answer

A)  decrease
B)  increase
C)  remain the same
D)  increase then decrease

Question 9

The phrenic nerves carry motor impulses to the ____________________.

Accepted Answer

The answer of The phrenic nerves carry motor impulses to...

Question 10

Exchange of gases is possible in the lungs because the alveoli are lined with ____________________ in which gases can dissolve.

Accepted Answer

The answer of Exchange of gases is possible in the...

Question 11

To compensate for metabolic acidosis,the respiratory rate will:

Accepted Answer

A)  decrease to help raise the pH of body fluids
B)  increase to help raise the pH of body fluids
C)  decrease to help lower the pH of body fluids
D)  increase to help lower the pH of body fluids

Question 12

Which statement is NOT true of respiratory volumes?

Accepted Answer

A)  They vary with the age and height of a person.
B)  Residual air is the air we cannot exhale.
C)  Vital capacity is the volume of the deepest inhalation.
D)  Tidal volume is considered a normal breath.

Question 13

A blood pH of 7.32 indicates:

Accepted Answer

A)  acidosis
B)  low normal
C)  high normal
D)  alkalosis

Question 14

The nasal mucosa is made of ____________________ epithelial tissue.

Accepted Answer

The answer of The nasal mucosa is made of ____________________...

Question 15

In external respiration,oxygen diffuses from the:

Accepted Answer

A)  alveoli to the blood
B)  blood to the tissue fluid
C)  blood to the alveoli
D)  tissue fluid to the blood

Question 16

During breathing,friction between the pleural membranes is reduced by ____________________.

Accepted Answer

The answer of During breathing,friction between the pleural membranes is...

Question 17

In respiratory alkalosis,the pH of the blood might be:

Accepted Answer

A)  7.32
B)  7.38
C)  7.42
D)  7.48

Question 18

Someone who is hyperventilating in a state of anxiety may also have:

Accepted Answer

A)  metabolic acidosis
B)  respiratory acidosis
C)  metabolic alkalosis
D)  respiratory alkalosis

Question 19

Normal exhalation is a passive process and depends on the ____________________ tissue of the lungs.

Accepted Answer

The answer of Normal exhalation is a passive process and...

Question 20

The bronchioles can constrict or dilate because of the ____________________ tissue in their walls.

Accepted Answer

The answer of The bronchioles can constrict or dilate because...

Exam 15: The Respiratory System

Which statement is NOT true of swallowing?

Correct AnswerverifiedShow Answer

A blood pH of 7.32 indicates:

Correct AnswerverifiedShow Answer

Someone who is hyperventilating in a state of anxiety may also have:

Correct AnswerverifiedShow Answer

In respiratory alkalosis,the pH of the blood might be:

Correct AnswerverifiedShow Answer

Normal exhalation is a passive process and depends on the ____________________ tissue of the lungs.

Correct AnswerverifiedShow Answer

The function of serous fluid is to:

Correct AnswerverifiedShow Answer

The term ventilation means:

Correct AnswerverifiedShow Answer

During swallowing,the larynx is covered by the ____________________.

Correct AnswerverifiedShow Answer

The phrenic nerves carry motor impulses to the ____________________.

Correct AnswerverifiedShow Answer

Which statement is NOT true of respiratory volumes?

Correct AnswerverifiedShow Answer

Which statement is NOT true of the air pressures involved in breathing?

Correct AnswerverifiedShow Answer

Any pathogens or air pollution that reach the alveoli are usually destroyed by:

Correct AnswerverifiedShow Answer

Exchange of gases is possible in the lungs because the alveoli are lined with ____________________ in which gases can dissolve.

Correct AnswerverifiedShow Answer

During exhalation,the diaphragm:

Correct AnswerverifiedShow Answer

In external respiration,oxygen diffuses from the:

Correct AnswerverifiedShow Answer

If carbon dioxide accumulates in body fluids,the pH of the fluid will:

Correct AnswerverifiedShow Answer

The bronchioles can constrict or dilate because of the ____________________ tissue in their walls.

Correct AnswerverifiedShow Answer

During breathing,friction between the pleural membranes is reduced by ____________________.

Correct AnswerverifiedShow Answer

The nasal mucosa is made of ____________________ epithelial tissue.

Correct AnswerverifiedShow Answer

To compensate for metabolic acidosis,the respiratory rate will:

Correct AnswerverifiedShow Answer

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