Question 1

Use the following key to determine the best answer.
-(1)  alveolar pressure during inspiration;
(2)  alveolar pressure during expiration

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) None of the above

Question 2

Which of the following results in an increase in shunted blood (blood not completely oxygenated) ?

Accepted Answer

A)   exercise
B)   pulmonary edema
C)   increased heart rate
D)   increased respiration rate
E)   None of these choices is correct.F) B) and E)
G) D) and E)

Question 3

Which of the following statements is true?

Accepted Answer

A)   As thoracic volume increases, alveolar pressure (Palv)  increases.
B)   In expiration, the thoracic volume increases.
C)   Constriction of bronchioles assists breathing.
D)   As alveolar volume increases, alveolar pressure (Palv)  decreases.
E)   Pressure is directly proportional to volume.F) B) and C)
G) B) and E)

Question 4

Why is transfused blood discarded after about 6 weeks of storage?

Accepted Answer

A)   It can not bind to oxygen anymore.
B)   It becomes too thick.
C)   The BPG levels are too low for adequate release of oxygen to tissues.
D)   The percent oxygen saturation is too low.E) B) and D)
F) None of the above C

Question 5

The diameter of bronchioles can change because their walls contain

Accepted Answer

A)   smooth muscle.
B)   skeletal muscle.
C)   fibrous cartilage.
D)   hyaline cartilage.
E)   elastic cartilage.F) None of the above
G) B) and E)

Question 6

Match the term with the appropriate description or definition.
-vital capacity
"Enter the letter of the correct description below"

Accepted Answer

A)  sum of the inspiratory reserve, expiratory reserve, tidal, and residual volumes
B)  volume of air inspired during a normal inspiration
C)  volume of air remaining in lungs after the most forceful expiration
D)  sum of the expiratory reserve, inspiratory reserve, and tidal volumes
E)  the amount of air that can be forcefully expired after expiration of the normal tidal volumeF) A) and E)
G) A) and C) D

Question 7

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 B)
G) A) and C)

Question 8

Which of the following statements concerning the dorsal and ventral respiratory groups is false?

Accepted Answer

A)   They are located in the reticular activating system.
B)   There is cross communication between these two groups.
C)   These groups establish the basic rate and depth of breathing.
D)   These groups increase the number of action potentials to the respiratory muscles during inspiration.
E)   Two dorsal and two ventral respiratory groups make up the medullary respiratory center.F) All of the above
G) D) and E)

Question 9

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

Accepted Answer

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

Question 10

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 B)
G) A) and C)

Question 11

Arrange the following structures in the order air passes through them during inhalation: (1)  alveolar ducts
(2)  alveolus
(3)  respiratory bronchiole
(4)  terminal bronchiole

Accepted Answer

A)   1, 2, 3, 4
B)   2, 1, 3, 4
C)   4, 3, 1, 2
D)   3, 2, 1, 4
E)   4, 3, 2, 1F) D) and E)
G) None of the above

Question 12

The part of the respiratory system where gas exchange does not occur is called __________ space.

Accepted Answer

The answer of The part of the respiratory system where...

Question 13

The nasal septum

Accepted Answer

A)   divides the nose into superior and inferior chambers.
B)   forms the floor of the nasal cavity.
C)   is the opening of the nose to the outside environment.
D)   is the part of the nose responsible for the sense of smell.
E)   divides the nose into right and left chambers.F) B) and D)
G) A) and D)

Question 14

Direct stimulation of neurons within the dorsal respiratory group would cause an increase in the frequency of action potential in the

Accepted Answer

A)   glossopharyngeal nerve that innervates the pharyngeal muscles.
B)   phrenic nerve that innervates the diaphragm.
C)   vagus nerve that innervates the smooth muscle of the bronchioles.
D)   intercostal nerves to internal intercostals muscles.
E)   intercostal nerves to external intercostals muscles.F) C) and D)
G) C) and E)

Question 15

A greater than normal amount of CO2 in the blood is called

Accepted Answer

A)   hypercapnia.
B)   hypoxia.
C)   hyperdioxemia.
D)   hypodioxemia.E) A) and D)
F) A) and B)

Question 16

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

Accepted Answer

A)   basement membrane of capillary endothelium
B)   capillary endothelium
C)   alveolar epithelium
D)   alveolar fluid
E)   basement of alveolar epitheliumF) A) and C)
G) B) and D)

Question 17

The major regulator of respiration is the plasma concentration of

Accepted Answer

A)   oxygen.
B)   carbon dioxide.
C)   water vapor.
D)   nitrogen.
E)   chloride.F) B) and C)
G) A) and D)

Question 18

The pitch of the sound produced by the vocal folds is controlled by the

Accepted Answer

A)   frequency of the vibrations.
B)   amplitude of the vibrations.
C)   thickness of the thyroid cartilage.
D)   size of the glottis.
E)   force of air moving past them.F) D) and E)
G) A) and E)

Question 19

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 rate.F) C) and D)
G) A) and E)

Question 20

Match the term with the appropriate description or definition.
-total lung capacity
"Enter the letter of the correct description below"

Accepted Answer

A)  sum of the inspiratory reserve, expiratory reserve, tidal, and residual volumes
B)  volume of air inspired during a normal inspiration
C)  volume of air remaining in lungs after the most forceful expiration
D)  sum of the expiratory reserve, inspiratory reserve, and tidal volumes
E)  the amount of air that can be forcefully expired after expiration of the normal tidal volumeF) B) and C)
G) B) and D) A

Exam 23: Respiratory System

Use the following key to determine the best answer. -(1) alveolar pressure during inspiration; (2) alveolar pressure during expiration

Correct AnswerverifiedShow Answer

Which of the following results in an increase in shunted blood (blood not completely oxygenated) ?

Correct AnswerverifiedShow Answer

Which of the following statements is true?

Correct AnswerverifiedShow Answer

Why is transfused blood discarded after about 6 weeks of storage?

Correct AnswerverifiedC

The diameter of bronchioles can change because their walls contain

Correct AnswerverifiedShow Answer

Match the term with the appropriate description or definition. -vital capacity "Enter the letter of the correct description below"

Correct AnswerverifiedD

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

Correct AnswerverifiedShow Answer

Which of the following statements concerning the dorsal and ventral respiratory groups is false?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Arrange the following structures in the order air passes through them during inhalation: (1) alveolar ducts (2) alveolus (3) respiratory bronchiole (4) terminal bronchiole

Correct AnswerverifiedShow Answer

The part of the respiratory system where gas exchange does not occur is called __________ space.

Correct AnswerverifiedShow Answer

The nasal septum

Correct AnswerverifiedShow Answer

Direct stimulation of neurons within the dorsal respiratory group would cause an increase in the frequency of action potential in the

Correct AnswerverifiedShow Answer

A greater than normal amount of CO2 in the blood is called

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The major regulator of respiration is the plasma concentration of

Correct AnswerverifiedShow Answer

The pitch of the sound produced by the vocal folds is controlled by the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Match the term with the appropriate description or definition. -total lung capacity "Enter the letter of the correct description below"

Correct AnswerverifiedA

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A greater than normal amount of CO₂ in the blood is called

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A