Question 1

The lungs have

Accepted Answer

A)   one blood flow route and one lymphatic supply.
B)   two blood flow routes and one lymphatic supply.
C)   one blood flow route and two lymphatic supplies.
D)   two blood flow routes and two lymphatic supplies.
E)   three blood flow routes and one lymphatic supply.F) A) and B)
G) A) and C)

Question 2

Which of the following is not part of the thoracic wall?

Accepted Answer

A)   Diaphragm
B)   Sternum
C)   Ribs
D)   Thoracic vertebraeE) C) and D)
F) None of the above

Question 3

Which factors are responsible for the decrease in the volume of the alveoli?

Accepted Answer

A)   Compliance and lung recoil
B)   Lung recoil and surface tension of water
C)   Compliance and surface tension of water
D)   Perfusion and lung recoilE) A) and B)
F) B) and C)

Question 4

During swallowing, the opening into the larynx is covered by the ________.

Accepted Answer

A)   epiglottis
B)   thyroid cartilage
C)   cricoid cartilage
D)   arytenoid cartilage
E)   the "Adam's apple"F) A) and D)
G) A) and C)

Question 5

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 place.E) B) and C)
F) A) and D)

Question 6

Which of the following describes the function of the nasal conchae?

Accepted Answer

A)   Increases turbulence in the airflow
B)   Olfaction
C)   Increases surface area for cleaning, warming, and moisturizing the air
D)   Increases turbulence and surface area for cleaning, warming, and moisturizing the airE) A) and D)
F) B) and C)

Question 7

A molecule of air enters the nose through the external nares. Which of the following is the correct pathway to the trachea?

Accepted Answer

A)   Nasal cavity, larynx, pharynx, trachea
B)   Oral cavity, nasal cavity, larynx, pharynx, trachea
C)   Nasopharynx, nasal cavity, laryngopharynx, trachea
D)   Nasal cavity, pharynx, larynx, trachea
E)   Nasal cavity, trachea, larynx, pharynxF) D) and E)
G) None of the above

Question 8

Oxygenated blood is carried to the tissues of the lungs via the ________.

Accepted Answer

A)   pulmonary veins
B)   bronchial arteries
C)   pulmonary artery
D)   abdominal aorta
E)   pleural arteriesF) B) and C)
G) C) and D)

Question 9

Use the table to determine the best answer. 
-Which of the patients above does not have any abnormal respiratory values?

Accepted Answer

The answer of Use the table to determine the best...

Question 10

The auditory tubes open into the ________.

Accepted Answer

A)   fauces
B)   oropharynx
C)   nasopharynx
D)   laryngopharynx
E)   nasal cavityF) All of the above
G) D) and E)

Question 11

It is possible to consciously control the rate and depth of respiration.

Accepted Answer

A) True 
 B)False

Question 12

The volume of air available for gas exchange per minute is called the ________.

Accepted Answer

A)   vital capacity
B)   alveolar ventilation
C)   minute respiratory volume
D)   functional residual capacity
E)   respiratory rateF) A) and E)
G) B) and D)

Question 13

The walls of the alveoli

Accepted Answer

A)   are composed of simple squamous epithelium.
B)   contain several layers of smooth muscle.
C)   contain goblet cells.
D)   are surrounded by cartilage.
E)   are ciliated.F) A) and E)
G) A) and D)

Question 14

During exercise, ventilation initially increases due to

Accepted Answer

A)   increased blood CO2 levels, stimulating baroreceptors.
B)   decreased blood O2 levels, stimulating chemoreceptors.
C)   decreased blood pH levels, stimulating baroreceptors.
D)   limb movements that stimulate the respiratory center.
E)   abrupt changes in metabolism or blood gases.F) A) and B)
G) A) and C)

Question 15

Which of the following is NOT a function of the respiratory system?

Accepted Answer

A)   Olfaction
B)   Taste
C)   Production of chemical mediators
D)   Voice production
E)   Regulation of blood pHF) All of the above
G) A) and B)

Question 16

Which of the following will cause a decrease in the surface area of the respiratory membrane?

Accepted Answer

A)   emphysema
B)   tuberculosis
C)   pneumonia
D)   All of the choices will reduce surface area of the respiratory membraneE) C) and D)
F) B) and D)

Question 17

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) C) and E)
G) C) and D)

Question 18

How does carbon monoxide affect red blood cells (RBCs) ?

Accepted Answer

A)   It causes them to shrivel.
B)   The hemoglobin within the RBC bind to carbon monoxide.
C)   The hemoglobin rejects carbon monoxide.
D)   The RBCs clump together.
E)   The carbon monoxide converts to carbon dioxide.F) A) and C)
G) A) and D)

Question 19

Use the table to determine the best answer. 
-Which of the patients above has a severe case of "test anxiety"?

Accepted Answer

The answer of Use the table to determine the best...

Question 20

Which law explains that an increase in volume causes a decrease in pressure?

Accepted Answer

A)   Henry's Law
B)   Dalton's Law
C)   Charles Law
D)   Boyle's LawE) A) and B)
F) C) and D)

Exam 23: Respiratory System

The auditory tubes open into the ________.

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Which law explains that an increase in volume causes a decrease in pressure?

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Which of the following will cause a decrease in the surface area of the respiratory membrane?

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A molecule of air enters the nose through the external nares. Which of the following is the correct pathway to the trachea?

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How does carbon monoxide affect red blood cells (RBCs) ?

Correct AnswerverifiedShow Answer

Use the table to determine the best answer. -Which of the patients above does not have any abnormal respiratory values?

Correct AnswerverifiedShow Answer

The volume of air available for gas exchange per minute is called the ________.

Correct AnswerverifiedShow Answer

Oxygenated blood is carried to the tissues of the lungs via the ________.

Correct AnswerverifiedShow Answer

The lungs have

Correct AnswerverifiedShow Answer

In which of the following sequences does PO2 progressively decrease?

Correct AnswerverifiedShow Answer

What occurs at the respiratory membrane?

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Which of the following is NOT a function of the respiratory system?

Correct AnswerverifiedShow Answer

Which of the following describes the function of the nasal conchae?

Correct AnswerverifiedShow Answer

The walls of the alveoli

Correct AnswerverifiedShow Answer

During exercise, ventilation initially increases due to

Correct AnswerverifiedShow Answer

Which factors are responsible for the decrease in the volume of the alveoli?

Correct AnswerverifiedShow Answer

Use the table to determine the best answer. -Which of the patients above has a severe case of "test anxiety"?

Correct AnswerverifiedShow Answer

It is possible to consciously control the rate and depth of respiration.

Correct AnswerverifiedShow Answer

Which of the following is not part of the thoracic wall?

Correct AnswerverifiedShow Answer

During swallowing, the opening into the larynx is covered by the ________.

Correct AnswerverifiedShow Answer

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In which of the following sequences does PO₂ progressively decrease?

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