Question 1

Microorganisms removed from incoming air by the mucus of the respiratory tract are ultimately exposed to and destroyed by

Accepted Answer

A)   toxins in the mucus.
B)   the cilia.
C)   stomach acids and enzymes.
D)   a lack of nutrients.
E)   alveolar macrophages.

Question 2

The condition of low tissue oxygen levels is known as

Accepted Answer

A)   cystic fibrosis.
B)   hypoxia.
C)   hyperventilation.
D)   pneumothorax.
E)   emphysema.

Question 3

Which of the following factors would increase the amount of oxygen released by hemoglobin from the bloodstream?

Accepted Answer

A)   decreased temperature and decreased pH
B)   decreased pH and increased temperature
C)   increased tissue  and increased pH
D)   decreased tissue  and increased pH
E)   decreased temperature and increased pH

Question 4

Active tissues receive approximately ________ as much O₂ as inactive tissues.

Accepted Answer

A)   2 times
B)   3 times
C)   5 times
D)   10 times
E)   100 times

Question 5

During forced breathing,which of the following occurs during inhalation?

Accepted Answer

A)   The diaphragm and external intercostal muscles relax.
B)   The DRG is inhibited.
C)   The expiratory center of the VRG is active.
D)   The inspiratory center of the VRG is inhibited.
E)   The expiratory center of the VRG is inhibited. E

Question 6

Receptors in the medulla oblongata respond to which variables?

Accepted Answer

A)   pH and  in CSF
B)   pH and  in blood
C)    and pH in blood
D)   pH and  in CSF
E)   pH and  in CSF

Question 7

Which of the following is defined as the absorption of oxygen and the release of carbon dioxide by cells?

Accepted Answer

A)   hypoxia
B)   external respiration
C)   anoxia
D)   pulmonary ventilation
E)   internal respiration

Question 8

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label B represents which structure(s) ?

Accepted Answer

A)   nose
B)   nasal cavity
C)   pharynx
D)   sinuses
E)   larynx A

Question 9

The actual sites of gas exchange within the lungs include

Accepted Answer

A)   bronchioles.
B)   alveolar ducts.
C)   pleural spaces.
D)   alveoli.
E)   capillary beds.

Question 10

How does fluid accumulation in the lungs affect vital capacity?

Accepted Answer

A)   Vital capacity increases in females but not in males.
B)   Vital capacity decreases in females but not in males.
C)   Vital capacity increases in both sexes equally.
D)   Vital capacity decreases in both sexes equally.
E)   Accumulating fluid has no effect on vital capacity.

Question 11

The amount of air that can be taken in over and above the tidal volume is the

Accepted Answer

A)   vital capacity.
B)   residual volume.
C)   expiratory reserve volume.
D)   inspiratory reserve volume.
E)   minimal volume.

Question 12

Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their

Accepted Answer

A)   endothelial cells of the alveolar capillaries.
B)   septal cells of the alveolar ducts.
C)   squamous epithelial cells of the alveoli.
D)   alveolar macrophages within the alveolar sacs.
E)   type II pneumocytes lining the respiratory bronchioles.

Question 13

The ends of each tracheal cartilage are connected by an elastic ligament and the

Accepted Answer

A)   cuneiform cartilages.
B)   diaphragm.
C)   arytenoid cartilages.
D)   pleura.
E)   trachealis muscle. E

Question 14

The structure that provides posterior support to the larynx is the

Accepted Answer

A)   glottis.
B)   cricoid cartilage.
C)   epiglottis.
D)   arytenoid cartilage.
E)   cuneiform cartilage.

Question 15

Which of the following has the lowest partial pressure in inhaled dry air?

Accepted Answer

A)   oxygen
B)   nitrogen
C)   water vapor
D)   carbon dioxide
E)   mercury

Question 16

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label F represents which structure(s) ?

Accepted Answer

A)   larynx
B)   trachea
C)   pharynx
D)   bronchus
E)   bronchioles

Question 17

Which is defined as the amount of air that remains in the lungs after a maximum exhalation?

Accepted Answer

A)   minimal volume
B)   inspiratory reserve volume
C)   vital capacity
D)   expiratory reserve volume
E)   residual volume

Question 18

When a patient has low compliance,it is no reference to her adhering to hospital policy,rather

Accepted Answer

A)   she may suffer from pneumonia.
B)   she may have an overproduction of surfactant.
C)   she may have alveolar damage.
D)   she may have lower energy demands while breathing.
E)   she may be diagnosed with chronic epistaxis.

Question 19

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label G represents which structure(s) ?

Accepted Answer

A)   larynx
B)   trachea
C)   pharynx
D)   bronchus
E)   bronchioles

Question 20

Glands within the lamina propria of the respiratory mucosa secrete

Accepted Answer

A)   hormones.
B)   saliva.
C)   mucus.
D)   sweat.
E)   acids.

Exam 15: The Respiratory System

Microorganisms removed from incoming air by the mucus of the respiratory tract are ultimately exposed to and destroyed by

Correct AnswerverifiedShow Answer

The condition of low tissue oxygen levels is known as

Correct AnswerverifiedShow Answer

Which of the following factors would increase the amount of oxygen released by hemoglobin from the bloodstream?

Correct AnswerverifiedShow Answer

Active tissues receive approximately ________ as much O₂ as inactive tissues.

Correct AnswerverifiedShow Answer

During forced breathing,which of the following occurs during inhalation?

Correct AnswerverifiedE

Receptors in the medulla oblongata respond to which variables?

Correct AnswerverifiedShow Answer

Which of the following is defined as the absorption of oxygen and the release of carbon dioxide by cells?

Correct AnswerverifiedShow Answer

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label B represents which structure(s) ?

Correct AnswerverifiedA

The actual sites of gas exchange within the lungs include

Correct AnswerverifiedShow Answer

How does fluid accumulation in the lungs affect vital capacity?

Correct AnswerverifiedShow Answer

The amount of air that can be taken in over and above the tidal volume is the

Correct AnswerverifiedShow Answer

Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their

Correct AnswerverifiedShow Answer

The ends of each tracheal cartilage are connected by an elastic ligament and the

Correct AnswerverifiedE

The structure that provides posterior support to the larynx is the

Correct AnswerverifiedShow Answer

Which of the following has the lowest partial pressure in inhaled dry air?

Correct AnswerverifiedShow Answer

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label F represents which structure(s) ?

Correct AnswerverifiedShow Answer

Which is defined as the amount of air that remains in the lungs after a maximum exhalation?

Correct AnswerverifiedShow Answer

When a patient has low compliance,it is no reference to her adhering to hospital policy,rather

Correct AnswerverifiedShow Answer

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label G represents which structure(s) ?

Correct AnswerverifiedShow Answer

Glands within the lamina propria of the respiratory mucosa secrete

Correct AnswerverifiedShow Answer

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E

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A

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E

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