Question 1

________ in the ________ cavity provides lubrication and reduces friction as the lungs change size during ventilation.

Accepted Answer

A)   Serous fluid; pleural
B)   Synovial fluid; peritoneal
C)   Mucus; pericardial
D)   Mucus; pleuralE) C) and D)
F) All of the above

Question 2

Because oxygen has a low solubility coefficient in water,

Accepted Answer

A)   it is easily dissolved in water and requires only a slight partial pressure gradient to enter the water.
B)   it is easily dissolved in water and the partial pressure gradient is irrelevant to its solubility.
C)   it is not easily dissolved in water and requires a steep partial pressure gradient to enter the water.
D)   it is impossible to dissolve oxygen into water unless the partial pressure gradient is very minor.E) A) and B)
F) C) and D)

Question 3

During systemic gas exchange, oxygen diffuses from the blood to the tissues and carbon dioxide diffuses from the tissues to the blood.

Accepted Answer

A) True 
 B)False

Question 4

The left primary bronchus is shorter, wider, and more vertically oriented than the right primary bronchus.

Accepted Answer

A) True 
 B)False

Question 5

Which is not part of the respiratory membrane?

Accepted Answer

A)   Capillary endothelium
B)   Fused basement membrane
C)   Plasma membrane of Type I cell
D)   Plasma membrane of Type II cellE) A) and B)
F) A) and C)

Question 6

The lungs of an individual with emphysema provide poor gas exchange due to the loss of alveolar walls. This exemplifies the need for a large ________ for efficient gas exchange.

Accepted Answer

A)   respiratory membrane surface area
B)   respiratory membrane thicknessC) A) and B)
D) undefined

Question 7

Which do not belong to the respiratory zone of the respiratory system?

Accepted Answer

A)   Respiratory bronchioles
B)   Alveolar ducts
C)   Terminal bronchioles
D)   Pulmonary alveoli
E)   Alveolar sacsF) A) and D)
G) A) and C)

Question 8

An increase in the partial pressure of CO2 causes bronchioles to

Accepted Answer

A)   constrict.
B)   dilate.C) A) and B)
D) undefined

Question 9

Compared to carbon dioxide, oxygen has a relatively ________ solubility coefficient and so requires a ________ partial pressure gradient to help diffuse the gas into the blood.

Accepted Answer

A)   low; large
B)   low; small
C)   high; large
D)   high; smallE) A) and C)
F) A) and D)

Question 10

What structure is also known as the "voice box"?

Accepted Answer

A)   Larynx
B)   Pharynx
C)   Esophagus
D)   Bronchus
E)   TracheaF) B) and E)
G) A) and B)

Question 11

What structures are used by both the respiratory and digestive systems?

Accepted Answer

A)   Oropharynx and laryngopharynx
B)   Laryngopharynx and larynx
C)   Nasal cavity and nasopharynx
D)   Paranasal sinuses
E)   Laryngopharynx and esophagusF) D) and E)
G) B) and C)

Question 12

Tracheal cartilages provide for ________ on the ________ aspect of the trachea.

Accepted Answer

A)   flexibility; anterior
B)   flexibility; posterior
C)   rigidity; anterior
D)   rigidity; posteriorE) All of the above
F) B) and C)

Question 13

Another name for the tertiary bronchi is the ________ bronchi.

Accepted Answer

The answer of Another name for the tertiary bronchi is...

Question 14

Suppose that following an automobile accident, a broken rib penetrates into the pleural cavity, causing air to accumulate in the space between the visceral and parietal pleura. This condition is known as a

Accepted Answer

A)   pneumothorax.
B)   tension hemothorax.
C)   hemothorax.
D)   cystic fibrosis.E) All of the above
F) A) and C)

Question 15

Maximum voluntary ventilation (MVV)  is the greatest amount of air that can be

Accepted Answer

A)   inspired and then expelled in 1 minute.
B)   expired in 1 second.
C)   held within the lungs for over 30 seconds.
D)   inspired in one breath (regardless of dead space) .E) C) and D)
F) All of the above

Question 16

Gross & microscopic anatomy of the respiratory tract & related organs. 
-In this view of the larynx, what structure does number 2 indicate?

Accepted Answer

A)   Tracheal cartilage
B)   Thyroid cartilage
C)   Hyoid bone
D)   Cricoid cartilage
E)   EpiglottisF) B) and E)
G) B) and D)

Question 17

Hemoglobin is crucial for oxygen transport in the blood because oxygen has a ________ solubility coefficient in water.

Accepted Answer

A)   high
B)   lowC) A) and B)
D) undefined

Question 18

Imagine that someone is climbing a mountain on a very hot day. As their muscles work, acidic by-products are generated. Describe the relevant responses of the respiratory system and also describe how the affinity for hemoglobin will change under these conditions.

Accepted Answer

Answers should mention the stimulation o...

Question 19

The anatomic features of the respiratory membrane that make alveolar gas exchange so efficient are

Accepted Answer

A)   the high degree of moisture and the large ratio of volume to surface area.
B)   its large surface area and minimal thickness.
C)   its thinness, high water content, and scarcity of capillaries.
D)   its hearty thickness and the presence of oxygen transport pumps.E) A) and B)
F) B) and C)

Question 20

Which of the following has the highest partial pressure of carbon dioxide?

Accepted Answer

A)   The alveoli of the lungs
B)   The blood circulating in systemic arteries
C)   The systemic cellsD) A) and C)
E) A) and B)

Exam 23: Respiratory System

Compared to carbon dioxide, oxygen has a relatively ________ solubility coefficient and so requires a ________ partial pressure gradient to help diffuse the gas into the blood.

Correct AnswerverifiedShow Answer

During systemic gas exchange, oxygen diffuses from the blood to the tissues and carbon dioxide diffuses from the tissues to the blood.

Correct AnswerverifiedShow Answer

Because oxygen has a low solubility coefficient in water,

Correct AnswerverifiedShow Answer

________ in the ________ cavity provides lubrication and reduces friction as the lungs change size during ventilation.

Correct AnswerverifiedShow Answer

Maximum voluntary ventilation (MVV) is the greatest amount of air that can be

Correct AnswerverifiedShow Answer

Which is not part of the respiratory membrane?

Correct AnswerverifiedShow Answer

The left primary bronchus is shorter, wider, and more vertically oriented than the right primary bronchus.

Correct AnswerverifiedShow Answer

An increase in the partial pressure of CO2 causes bronchioles to

Correct AnswerverifiedShow Answer

What structure is also known as the "voice box"?

Correct AnswerverifiedShow Answer

The anatomic features of the respiratory membrane that make alveolar gas exchange so efficient are

Correct AnswerverifiedShow Answer

What structures are used by both the respiratory and digestive systems?

Correct AnswerverifiedShow Answer

The lungs of an individual with emphysema provide poor gas exchange due to the loss of alveolar walls. This exemplifies the need for a large ________ for efficient gas exchange.

Correct AnswerverifiedShow Answer

Imagine that someone is climbing a mountain on a very hot day. As their muscles work, acidic by-products are generated. Describe the relevant responses of the respiratory system and also describe how the affinity for hemoglobin will change under these conditions.

Correct AnswerverifiedAnswers should mention the stimulation o...View AnswerShow Answer

Which do not belong to the respiratory zone of the respiratory system?

Correct AnswerverifiedShow Answer

Tracheal cartilages provide for ________ on the ________ aspect of the trachea.

Correct AnswerverifiedShow Answer

Gross & microscopic anatomy of the respiratory tract & related organs. -In this view of the larynx, what structure does number 2 indicate?

Correct AnswerverifiedShow Answer

Suppose that following an automobile accident, a broken rib penetrates into the pleural cavity, causing air to accumulate in the space between the visceral and parietal pleura. This condition is known as a

Correct AnswerverifiedShow Answer

Another name for the tertiary bronchi is the ________ bronchi.

Correct AnswerverifiedShow Answer

Hemoglobin is crucial for oxygen transport in the blood because oxygen has a ________ solubility coefficient in water.

Correct AnswerverifiedShow Answer

Which of the following has the highest partial pressure of carbon dioxide?

Correct AnswerverifiedShow Answer

Compared to carbon dioxide, oxygen has a relatively solubility coefficient and so requires a partial pressure gradient to help diffuse the gas into the blood.

Correct Answer
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in the cavity provides lubrication and reduces friction as the lungs change size during ventilation.

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An increase in the partial pressure of CO₂ causes bronchioles to

Correct Answer
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Answers should mention the stimulation o...
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Tracheal cartilages provide for on the aspect of the trachea.

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