Question 1

The actual sites of gas exchange within the lungs are

Accepted Answer

A)   bronchioles.
B)   alveolar ducts.
C)   pleural spaces.
D)   alveoli.
E)   terminal sacs.F) A) and C)
G) B) and D)

Question 2

The normal rate and depth of breathing is established in centers located in the

Accepted Answer

A)   midbrain.
B)   cerebellum.
C)   cerebrum.
D)   spinal cord.
E)   medulla oblongata.F) None of the above
G) A) and C)

Question 3

Which of the following would be lower?

Accepted Answer

A)   the percent of oxygen saturation of hemoglobin when the body temperature is 100.5˚F.
B)   the percent of oxygen saturation of hemoglobin when the body temperature is 97.4˚F.C) A) and B)
D) undefined

Question 4

Chemoreceptors located in the _________________________ bodies and _________________________ bodies are sensitive to changes in PCO2 and PO2.

Accepted Answer

Question 5

Air moves out of the lungs because

Accepted Answer

A)   the gas pressure in the lungs is less than the outside pressure.
B)   the volume of the lungs decreases with expiration.
C)   contraction of the diaphragm increases the volume of the pleural cavity.
D)   A and C only
E)   all of the aboveF) A) and D)
G) A) and B)

Question 6

Which of the following is the first structure of the lower respiratory passageway?

Accepted Answer

A)   nasal cavity
B)   pharynx
C)   larynx
D)   trachea
E)   bronchiF) None of the above
G) B) and E)

Question 7

During the winter, Brad sleeps in a dorm room that lacks any humidifier for the heated air. In the mornings he notices that his nose is "stuffy" similar to when he has a cold, but after showering and drinking some water, the stuffiness disappears until the next morning. What might be the cause of Brad's nasal condition?

Accepted Answer

Since the air that Brad is breathing is ...

Question 8

Most of the carbon dioxide transported by the blood is

Accepted Answer

A)   dissolved in plasma.
B)   bound to hemoglobin.
C)   in ionic form as solute (bicarbonate)  in the plasma.
D)   bound to the same protein as carbon dioxide.
E)   carried by white blood cells.F) A) and E)
G) A) and C)

Question 9

Respiration is controlled by the medulla oblongata and _________________________ of the brain stem.

Accepted Answer

The answer of Respiration is controlled by the medulla oblongata...

Question 10

Alveolar ventilation refers to the

Accepted Answer

A)   movement of air into and out of the lungs.
B)   movement of air into and out of the alveoli.
C)   movement of dissolved gases from the alveoli to the blood.
D)   movement of dissolved gases from the blood to the alveoli.
E)   utilization of oxygen by alveolar cells to support metabolism.F) B) and C)
G) All of the above

Question 11

In quiet breathing,

Accepted Answer

A)   inspiration and expiration involve muscular contractions.
B)   inspiration is passive and expiration involves muscular contractions.
C)   inspiration involves muscular contractions and expiration is passive.
D)   inspiration and expiration are both passive processes.
E)   none of the aboveF) A) and D)
G) A) and C)

Question 12

Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to

Accepted Answer

A)   increase the temperature of the plasma.
B)   increase the partial pressure of oxygen.
C)   decrease the partial pressure of oxygen.
D)   increase the rate of plasma flow through the lungs.
E)   decrease the alveolar ventilation rate.F) A) and E)
G) C) and E)

Question 13

Which of the following is greater?

Accepted Answer

A)   the partial pressure of oxygen in the arteries
B)   the partial pressure of oxygen in the veinsC) A) and B)
D) undefined

Question 14

Functions of the respiratory system include

Accepted Answer

A)   protecting respiratory surfaces from dehydration, temperature changes, or other environmental variations.
B)   defending the respiratory system and other tissues from pathogenic invasion.
C)   providing an extensive area for gas exchange between air and circulating blood.
D)   A and C only
E)   all of the aboveF) A) and D)
G) A) and C)

Question 15

The force responsible for normal expiration is supplied by the

Accepted Answer

A)   diaphragm.
B)   external intercostal muscles.
C)   elastic recoil of lung tissue and the thoracic cage.
D)   alveoli.
E)   smooth muscles in the airways.F) D) and E)
G) B) and C)

Question 16

The following is a list of some of the structures of the respiratory tree: 1. secondary bronchi
2)  bronchioles
3)  alveolar ducts
4)  primary bronchi
5)  respiratory bronchioles
6)  alveoli
7)  terminal bronchioles
The order in which air passes through these structures beginning at the trachea is

Accepted Answer

A)   4, 1, 2, 7, 5, 3, 6.
B)   4, 1, 2, 5, 7, 3, 6.
C)   1, 4, 2, 5, 7, 3, 6.
D)   1, 4, 2, 7, 5, 3, 6.
E)   2, 4, 1, 7, 5, 3, 6.F) A) and B)
G) C) and D)

Question 17

Using the figure above, identify the labeled part.
-Label B: ________

Accepted Answer

The answer of  Using the figure above, identify the...

Question 18

Using the figure above, identify the labeled part.
-Label I: ________

Accepted Answer

The answer of  Using the figure above, identify the...

Question 19

The volume of air moved into or out of the lungs during quiet respiration is known as _________________________.

Accepted Answer

The answer of The volume of air moved into or...

Question 20

The airway that passes through the mediastinum anterior to the esophagus is the

Accepted Answer

A)   pharynx.
B)   bronchiole.
C)   trachea.
D)   alveolar duct.
E)   laryngeal duct.F) A) and D)
G) A) and E)

Exam 15: The Respiratory System

Chemoreceptors located in the _ bodies and _ bodies are sensitive to changes in P_CO2 and P_O2.

Correct Answer
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Using the figure above, identify the labeled part. -Label B: ________

Correct Answer
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Alveolar ventilation refers to the

Correct Answer
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Functions of the respiratory system include

Correct Answer
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The airway that passes through the mediastinum anterior to the esophagus is the

Correct Answer
verified

The volume of air moved into or out of the lungs during quiet respiration is known as _________________________.

Correct Answer
verified

Which of the following is the first structure of the lower respiratory passageway?

Correct Answer
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The force responsible for normal expiration is supplied by the

Correct Answer
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In quiet breathing,

Correct Answer
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Respiration is controlled by the medulla oblongata and _________________________ of the brain stem.

Correct Answer
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The actual sites of gas exchange within the lungs are

Correct Answer
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Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to

Correct Answer
verified

The following is a list of some of the structures of the respiratory tree: 1. secondary bronchi 2) bronchioles 3) alveolar ducts 4) primary bronchi 5) respiratory bronchioles 6) alveoli 7) terminal bronchioles The order in which air passes through these structures beginning at the trachea is

Correct Answer
verified

Which of the following would be lower?

Correct Answer
verified

Correct Answer
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Since the air that Brad is breathing is ...
View Answer

Which of the following is greater?

Correct Answer
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Air moves out of the lungs because

Correct Answer
verified

Most of the carbon dioxide transported by the blood is

Correct Answer
verified

The normal rate and depth of breathing is established in centers located in the

Correct Answer
verified

Using the figure above, identify the labeled part. -Label I: ________

Correct Answer
verified

Exam 15: The Respiratory System

Chemoreceptors located in the _________________________ bodies and _________________________ bodies are sensitive to changes in PCO2 and PO2.

Correct AnswerverifiedShow Answer

Using the figure above, identify the labeled part. -Label B: ________

Correct AnswerverifiedShow Answer

Alveolar ventilation refers to the

Correct AnswerverifiedShow Answer

Functions of the respiratory system include

Correct AnswerverifiedShow Answer

The airway that passes through the mediastinum anterior to the esophagus is the

Correct AnswerverifiedShow Answer

The volume of air moved into or out of the lungs during quiet respiration is known as _________________________.

Correct AnswerverifiedShow Answer

Which of the following is the first structure of the lower respiratory passageway?

Correct AnswerverifiedShow Answer

The force responsible for normal expiration is supplied by the

Correct AnswerverifiedShow Answer

In quiet breathing,

Correct AnswerverifiedShow Answer

Respiration is controlled by the medulla oblongata and _________________________ of the brain stem.

Correct AnswerverifiedShow Answer

The actual sites of gas exchange within the lungs are

Correct AnswerverifiedShow Answer

Carbon dioxide is more soluble in water than oxygen. To get the same amount of oxygen to dissolve in plasma as carbon dioxide, you would have to

Correct AnswerverifiedShow Answer

The following is a list of some of the structures of the respiratory tree: 1. secondary bronchi 2) bronchioles 3) alveolar ducts 4) primary bronchi 5) respiratory bronchioles 6) alveoli 7) terminal bronchioles The order in which air passes through these structures beginning at the trachea is

Correct AnswerverifiedShow Answer

Which of the following would be lower?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedSince the air that Brad is breathing is ...View AnswerShow Answer

Which of the following is greater?

Correct AnswerverifiedShow Answer

Air moves out of the lungs because

Correct AnswerverifiedShow Answer

Most of the carbon dioxide transported by the blood is

Correct AnswerverifiedShow Answer

The normal rate and depth of breathing is established in centers located in the

Correct AnswerverifiedShow Answer

Using the figure above, identify the labeled part. -Label I: ________

Correct AnswerverifiedShow Answer

Chemoreceptors located in the _ bodies and _ bodies are sensitive to changes in P_CO2 and P_O2.

Correct Answer
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Since the air that Brad is breathing is ...
View Answer

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