Question 1

The respiratory air pressure that is always negative is:

Accepted Answer

A)  intrapulmonic pressure
B)  intrapleural pressure
C)  interpulmonic pressure
D)  interpleural pressure

Question 2

The CNS respiratory centers are located in the:

Accepted Answer

A)  pons and hypothalamus
B)  hypothalamus and medulla
C)  medulla and pons
D)  cerebrum and medulla

Question 3

A breathing rate that could help compensate for metabolic acidosis would be ___ per minute.

Accepted Answer

A)  8
B)  14
C)  18
D)  36

Question 4

Most oxygen is transported in the blood bonded to:

Accepted Answer

A)  iron in the plasma
B)  RBC membranes
C)  hemoglobin in the plasma
D)  hemoglobin in the RBCs

Question 5

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 6

The cause of respiratory alkalosis is:

Accepted Answer

A)  accumulating oxygen
B)  not enough oxygen
C)  accumulating carbon dioxide
D)  not enough carbon dioxide

Question 7

Most carbon dioxide is transported in the blood:

Accepted Answer

A)  as bicarbonate ions in the plasma
B)  as bicarbonate ions in the RBCs
C)  bonded to hemoglobin in the plasma
D)  bonded to hemoglobin in the RBCs

Question 8

The parts of the pharynx that are both air and food passageways are the:

Accepted Answer

A)  oropharynx and laryngopharynx
B)  laryngopharynx and nasopharynx
C)  nasopharynx and oropharynx
D)  oropharynx and glossopharynx

Question 9

The volume of air inhaled and exhaled in one breath is called:

Accepted Answer

A)  tidal volume
B)  normal volume
C)  normal capacity
D)  expected capacity

Question 10

With respect to carbon dioxide transport,the function of hemoglobin is to:

Accepted Answer

A)  carry most carbon dioxide inside the RBCs
B)  buffer hydrogen ions
C)  attach carbon dioxide to water to be transported
D)  make carbon dioxide soluble in the water of plasma

Question 11

Pulmonary surfactant is produced by:

Accepted Answer

A)  pulmonary capillaries
B)  the pleural membranes
C)  alveolar type I cells
D)  alveolar type II cells

Question 12

During inhalation,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 13

In response to hypoxia,the breathing rate will:

Accepted Answer

A)  decrease to inhale less oxygen
B)  decrease to exhale less carbon dioxide
C)  increase to inhale more oxygen
D)  increase to exhale more carbon dioxide

Question 14

Intrapulmonic pressure is the pressure:

Accepted Answer

A)  of the air just before it enters the nose
B)  within the bronchial tree and alveoli
C)  between the pleural membranes
D)  within the pulmonary circulation,where blood pressure is always low

Question 15

Vital capacity is the pulmonary volume that includes:

Accepted Answer

A)  tidal volume and inspiratory reserve
B)  tidal volume and expiratory reserve
C)  both A and B
D)  both A and B,and the vital residual last gasp reserve

Question 16

During breathing,friction between the pleural membranes is prevented by:

Accepted Answer

A)  tissue fluid
B)  pulmonary surfactant
C)  serous fluid
D)  plasma

Question 17

Mucus and pathogens are swept out of the larynx and trachea by:

Accepted Answer

A)  smooth muscle
B)  peristalsis
C)  ciliated epithelium
D)  squamous epithelium

Question 18

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 19

The visceral pleura is found:

Accepted Answer

A)  covering the chest cavity
B)  lining the chest cavity
C)  covering the lungs
D)  lining the lungs

Question 20

The function of hemoglobin is to:

Accepted Answer

A)  carry most oxygen and most carbon dioxide
B)  carry most oxygen
C)  carry most carbon dioxide bonded to iron
D)  carry some oxygen and most carbon dioxide

Exam 16:The Respiratory System-Part C

Most oxygen is transported in the blood bonded to:

Correct AnswerverifiedShow Answer

In response to hypoxia,the breathing rate will:

Correct AnswerverifiedShow Answer

The respiratory air pressure that is always negative is:

Correct AnswerverifiedShow Answer

The visceral pleura is found:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Most carbon dioxide is transported in the blood:

Correct AnswerverifiedShow Answer

The function of hemoglobin is to:

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A breathing rate that could help compensate for metabolic acidosis would be ___ per minute.

Correct AnswerverifiedShow Answer

Mucus and pathogens are swept out of the larynx and trachea by:

Correct AnswerverifiedShow Answer

During breathing,friction between the pleural membranes is prevented by:

Correct AnswerverifiedShow Answer

The parts of the pharynx that are both air and food passageways are the:

Correct AnswerverifiedShow Answer

Intrapulmonic pressure is the pressure:

Correct AnswerverifiedShow Answer

The CNS respiratory centers are located in the:

Correct AnswerverifiedShow Answer

Vital capacity is the pulmonary volume that includes:

Correct AnswerverifiedShow Answer

With respect to carbon dioxide transport,the function of hemoglobin is to:

Correct AnswerverifiedShow Answer

The cause of respiratory alkalosis is:

Correct AnswerverifiedShow Answer

Pulmonary surfactant is produced by:

Correct AnswerverifiedShow Answer

During inhalation,the diaphragm:

Correct AnswerverifiedShow Answer

The volume of air inhaled and exhaled in one breath is called:

Correct AnswerverifiedShow Answer

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