Question 1

-The diagram illustrates the respiratory membrane. What layer is "A"?

Accepted Answer

A)   basement membrane of capillary endothelium
B)   capillary endothelium
C)   alveolar epithelium
D)   alveolar fluid
E)   basement of alveolar epitheliumF) B) and C)
G) None of the above

Question 2

Which of the following is part of the upper respiratory tract?

Accepted Answer

A)   lungs
B)   pharynx
C)   trachea
D)   bronchi
E)   bronchiolesF) B) and C)
G) B) and E)

Question 3

-Which of the patients above does not have any abnormal respiratory values?

Accepted Answer

The answer of 
-Which of the patients above does not...

Question 4

Which of the following muscles increases the volume of the thorax during a normal inhalation? (1)  diaphragm
(2)  external intercostals
(3)  internal intercostals
(4)  rectus abdominis

Accepted Answer

A)   1, 2
B)   1, 3
C)   2, 3
D)   2, 4
E)   3, 4F) A) and E)
G) B) and D)

Question 5

Which of the following statements concerning the lungs and the pleura is true?

Accepted Answer

A)   Each lung is suspended in a separate pleural cavity.
B)   Parietal pleura covers the surface of each lung.
C)   The space between the visceral and parietal pleurae is called the mediastinum.
D)   The pleural fluid assists in gas exchange.
E)   The pleural membranes adhere, but cannot slide past each other.F) A) and C)
G) B) and E)

Question 6

Mr. Smith hypoventilates and retains too much carbon dioxide. Which of the following receptors is stimulated by an increase in carbon dioxide?

Accepted Answer

A)   irritant receptors
B)   pressure receptors
C)   osmoreceptors
D)   peripheral chemoreceptors
E)   baroreceptorsF) None of the above
G) A) and B)

Question 7

The portion of the pharynx that extends from the internal nares to the level of the uvula is the

Accepted Answer

A)   glottis.
B)   nasopharynx.
C)   oropharynx.
D)   laryngopharynx.
E)   glottopharynx.F) None of the above
G) D) and E)

Question 8

Which of the following functions is associated with the nose?

Accepted Answer

A)   initiating the cough reflex
B)   external respiration
C)   warming the air
D)   producing mucus to trap debris from the air
E)   warming the air and producing mucus to trap debris from the airF) A) and B)
G) A) and C)

Question 9

In which of the following sequences does PO2 progressively decrease?

Accepted Answer

A)   body tissue, arterial blood, alveolar air
B)   body tissue, alveolar air, arterial blood
C)   blood in aorta, atmospheric air, body tissues
D)   atmospheric air, blood in aorta, body tissues
E)   body tissue, aorta, alveolar airF) None of the above
G) A) and D)

Question 10

As the result of an asthmatic attack,

Accepted Answer

A)   ventilation exceeds the ability of blood to pick up oxygen.
B)   ventilation is inadequate to oxygenate blood.
C)   pulmonary blood flow is reduced while ventilation remains normal.
D)   the surface area available for gas exchange increases.
E)   bronchioles dilate.F) B) and E)
G) B) and D)

Question 11

Use the following key to determine the best answer.
-(1)  PO2 in alveolar air;
(2)  PO2 in venous blood

Accepted Answer

A)  Choose this if the first item is greater than the second item.
B)  Choose this if the first item is less than the second item.
C)  Choose this if the first item is equal or nearly equal to the second item.D) A) and B)
E) All of the above

Question 12

The respiratory zone of the tracheobronchial tree includes which of the following?

Accepted Answer

A)   trachea
B)   alveoli
C)   primary bronchi
D)   larynx
E)   tertiary bronchiF) C) and E)
G) A) and B)

Question 13

Which of the following statements concerning the larynx is correct?

Accepted Answer

A)   The larynx contains four unpaired cartilages.
B)   When the glottis closes, air is prevented from leaving the lungs.
C)   Unlike other portions of the larynx, the epiglottis consists of some bony tissue.
D)   The inferior laryngeal cartilage is the thyroid cartilage.
E)   The epiglottis is also called "Adam's apple".F) B) and C)
G) B) and D)

Question 14

As acidity increases, how does this affect the affinity of hemoglobin for the oxygen it carries?

Accepted Answer

A)   Oxyhemoglobin affinity decreases.
B)   Oxyhemoglobin affinity increases.
C)   Oxyhemoglobin affinity remains the same.
D)   Hemoglobin loses its affinity for oxygen.
E)   None of these choices is correct.F) A) and D)
G) B) and E)

Question 15

What occurs at the respiratory membrane?

Accepted Answer

A)   mucus removes debris
B)   gas exchange between the air and blood takes place
C)   macrophages accumulate to remove debris
D)   gas exchange between the blood and tissues takes placeE) A) and D)
F) A) and C)

Question 16

Match the disorder of the respiratory system with the best description.
-emphysema

Accepted Answer

A)  destruction of the alveolar walls
B)  inflammation of the bronchii
C)  inherited disease that affects secretory cells lining the lungs
D)  replacement of lung tissue with fibrous connective tissue
E)  infant stops breathing during sleepF) None of the above
G) B) and E)

Question 17

External respiration refers to

Accepted Answer

A)   atmospheric air coming into the lungs.
B)   gas exchange between the lungs and the blood.
C)   gas exchange in the atmosphere.
D)   gas exchange between the blood and body tissues.
E)   cellular respiration.F) B) and D)
G) A) and C)

Question 18

Contraction of the __________ muscles will elevate the ribs and move the sternum.

Accepted Answer

External i...

Question 19

When carbon dioxide levels in the blood increase, the

Accepted Answer

A)   condition is called hypocapnia.
B)   pH of the blood increases.
C)   blood becomes more acidic.
D)   number of hydrogen ions in the blood decreases.
E)   blood becomes more alkaline.F) A) and C)
G) All of the above

Question 20

The Haldane effect means that

Accepted Answer

A)   as hemoglobin releases CO2, the ability to pick up O2 increases.
B)   as hemoglobin releases bicarbonate ions, the ability to pick up chloride ions increases.
C)   as hemoglobin releases O2, the ability to pick up CO2 increases.
D)   as hemoglobin releases O2, the ability to pick up CO2 decreases.E) A) and B)
F) A) and C)

Exam 23: Respiratory System

The portion of the pharynx that extends from the internal nares to the level of the uvula is the

Correct AnswerverifiedShow Answer

As the result of an asthmatic attack,

Correct AnswerverifiedShow Answer

Which of the following statements concerning the larynx is correct?

Correct AnswerverifiedShow Answer

Match the disorder of the respiratory system with the best description. -emphysema

Correct AnswerverifiedShow Answer

Mr. Smith hypoventilates and retains too much carbon dioxide. Which of the following receptors is stimulated by an increase in carbon dioxide?

Correct AnswerverifiedShow Answer

Which of the following is part of the upper respiratory tract?

Correct AnswerverifiedShow Answer

What occurs at the respiratory membrane?

Correct AnswerverifiedShow Answer

When carbon dioxide levels in the blood increase, the

Correct AnswerverifiedShow Answer

In which of the following sequences does PO2 progressively decrease?

Correct AnswerverifiedShow Answer

External respiration refers to

Correct AnswerverifiedShow Answer

-The diagram illustrates the respiratory membrane. What layer is "A"?

Correct AnswerverifiedShow Answer

Which of the following statements concerning the lungs and the pleura is true?

Correct AnswerverifiedShow Answer

Which of the following functions is associated with the nose?

Correct AnswerverifiedShow Answer

Which of the following muscles increases the volume of the thorax during a normal inhalation? (1) diaphragm (2) external intercostals (3) internal intercostals (4) rectus abdominis

Correct AnswerverifiedShow Answer

-Which of the patients above does not have any abnormal respiratory values?

Correct AnswerverifiedShow Answer

Contraction of the __________ muscles will elevate the ribs and move the sternum.

Correct AnswerverifiedExternal i...View AnswerShow Answer

Use the following key to determine the best answer. -(1) PO2 in alveolar air; (2) PO2 in venous blood

Correct AnswerverifiedShow Answer

As acidity increases, how does this affect the affinity of hemoglobin for the oxygen it carries?

Correct AnswerverifiedShow Answer

The respiratory zone of the tracheobronchial tree includes which of the following?

Correct AnswerverifiedShow Answer

The Haldane effect means that

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

In which of the following sequences does PO₂ progressively decrease?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
External i...
View Answer

Use the following key to determine the best answer. -(1) PO₂ in alveolar air; (2) PO₂ in venous blood

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified