Question 1

The physical movement of air into and out of lungs is termed

Accepted Answer

A)   external respiration.
B)   internal respiration.
C)   cellular respiration.
D)   pulmonary ventilation.
E)   gas diffusion.F) B) and C)
G) None of the above D

Question 2

The palatine tonsils lie in the walls of the

Accepted Answer

A)   nasopharynx.
B)   oropharynx.
C)   laryngopharynx.
D)   larynx.
E)   nasal cavity.F) A) and B)
G) A) and C)

Question 3

The function of pulmonary ventilation is to

Accepted Answer

A)   remove carbon dioxide from the blood.
B)   supply oxygen to the blood.
C)   maintain adequate alveolar ventilation.
D)   remove air from dead air space.
E)   prevent gas exchange in the bronchioles.F) A) and D)
G) A) and E)

Question 4

Anewborn infant is found dead, abandoned by the road. Among the many questions that the police would like answered is whether the infant was stillborn. How could the medical examiner tell?

Accepted Answer

If the infant had been born alive, his o...

Question 5

Factors affecting the release of oxygen from hemoglobin can be visualized by using a

Accepted Answer

A)   spirograph.
B)   pulmonary volume chart.
C)   respiratory cycle chart.
D)   oxygen-hemoglobin saturation curve.
E)   blood gas analysis.F) A) and D)
G) B) and C)

Question 6

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver getdecompression sickness?

Accepted Answer

A)   Pressure decreases and carbon dioxide rushes into cells.
B)   Pressure changes too fast and the carbon dioxide in the blood forms bubbles.
C)   Pressure decreases too fast and nitrogen gas in the blood forms bubbles.
D)   The gas in the SCUBA tank had too much pressure and rapid ascent forces too much air into the blood.
E)   Pressure increases too fast and too much oxygen enters the blood and forms bubbles.F) None of the above
G) B) and E)

Question 7

What occurs if intrapulmonic pressure is 763 mm Hg?

Accepted Answer

A)   hyperventilation
B)   exhalation
C)   pause in breathing
D)   apnea
E)   inhalationF) None of the above
G) A) and C) B

Question 8

During inhalation, air continues to move into the lungs until

Accepted Answer

A)   the internal pressure is the same is atmospheric pressure.
B)   the internal pressure is less than atmospheric pressure.
C)   the internal pressure is greater than atmospheric pressure.
D)   the compliance of the lung decreases.
E)   the lungs recoil.F) All of the above
G) None of the above

Question 9

When the diaphragm and external intercostal muscles contract,

Accepted Answer

A)   the volume of the thorax increases.
B)   the volume of the thorax decreases.
C)   the volume of the lungs decreases.
D)   the lungs shrink.
E)   expiration occurs.F) C) and D)
G) D) and E)

Question 10

The effect of pH on hemoglobin saturation is known as the

Accepted Answer

A)   Bainbridge reflex.
B)   Bohr effect.
C)   pulmonary reflex.
D)   respiratory effect.
E)   Hering-Breuer reflex.F) A) and B)
G) A) and C)

Question 11

The respiratory portion of the respiratory tract includes the

Accepted Answer

A)   bronchi.
B)   trachea.
C)   larynx.
D)   alveoli.
E)   nose.F) A) and D)
G) B) and D)

Question 12

The partial pressure of carbon dioxide in venous blood is approximately

Accepted Answer

A)   40 mm Hg.
B)   45 mm Hg.
C)   50 mm Hg.
D)   70 mm Hg.
E)   100 mm Hg.F) A) and D)
G) C) and D)

Question 13

Figure 23-1 The Upper Airways
 
Use Figure 23-1 to answer the following questions:
-What is the function of the structure labeled "8"?

Accepted Answer

A)   forces air into the lungs
B)   causes air to swirl within the respiratory passageway
C)   prevents food from entering the larynx
D)   acts like a supplementary air pump
E)   adjusts tension of vocal foldsF) C) and E)
G) A) and C)

Question 14

What is hypercapnia? How does it affect respiration? What are common causes?

Accepted Answer

Hypercapnia refers to a condition of elevated partial pressure of carbon dioxide. This rise is detected by chemoreceptors in the aortic and carotid bodies and powerfully stimulates ventilation through effects on pontine nuclei. Hypercapnia results from increased production as during exercise or reduced elimination as in reduced alveolar ventilation.

Question 15

The percent of oxygen saturation of hemoglobin when the temperature is 38 degrees centigrade is

Accepted Answer

A)   greater than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade.
B)   less than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade.
C)   equal to the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade.
D)   equal to the percent of oxygen saturation of hemoglobin when the temperature is 20 degrees centigrade.
E)   equal to the percent of oxygen saturation of hemoglobin when BPG levels are high.F) A) and D)
G) All of the above

Question 16

Respiratory function deteriorates as a result of pneumonia because inflammation

Accepted Answer

A)   causes fluids to leak into the alveoli.
B)   causes respiratory bronchioles to swell and dilate.
C)   causes the lungs to leak air into the thorax.
D)   reduces movement of the epiglottis.
E)   reduces the size of the pleural cavity.F) B) and C)
G) A) and E)

Question 17

The nasal cavity opens into the nasopharynx through a connection known as the

Accepted Answer

A)   oropharynx.
B)   nasal meatus.
C)   nasal vestibule.
D)   internal nares.
E)   auditory canal.F) B) and D)
G) C) and D)

Question 18

During exercise, which of the following contract for active exhalation?

Accepted Answer

A)   rectus abdominis and internal intercostal muscles
B)   diaphragm and internal intercostal muscles
C)   rectus abdominis and diaphragm muscles
D)   diaphragm and external intercostal muscles
E)   pectoralis major and serratus anterior musclesF) A) and B)
G) A) and C)

Question 19

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) All of the above
G) A) and B)

Question 20

Total alveolar surface area is reduced in

Accepted Answer

A)   lung cancer.
B)   atelectasis.
C)   emphysema.
D)   pneumothorax.
E)   asthma.F) A) and C)
G) A) and E)

Exam 23: The Respiratory System

The physical movement of air into and out of lungs is termed

Correct Answer
verified
D

The palatine tonsils lie in the walls of the

Correct Answer
verified

The function of pulmonary ventilation is to

Correct Answer
verified

Anewborn infant is found dead, abandoned by the road. Among the many questions that the police would like answered is whether the infant was stillborn. How could the medical examiner tell?

Correct Answer
verified
If the infant had been born alive, his o...
View Answer

Factors affecting the release of oxygen from hemoglobin can be visualized by using a

Correct Answer
verified

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver getdecompression sickness?

Correct Answer
verified

What occurs if intrapulmonic pressure is 763 mm Hg?

Correct Answer
verified
B

During inhalation, air continues to move into the lungs until

Correct Answer
verified

When the diaphragm and external intercostal muscles contract,

Correct Answer
verified

The effect of pH on hemoglobin saturation is known as the

Correct Answer
verified

The respiratory portion of the respiratory tract includes the

Correct Answer
verified

The partial pressure of carbon dioxide in venous blood is approximately

Correct Answer
verified

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -What is the function of the structure labeled "8"?

Correct Answer
verified

What is hypercapnia? How does it affect respiration? What are common causes?

The percent of oxygen saturation of hemoglobin when the temperature is 38 degrees centigrade is

Correct Answer
verified

Respiratory function deteriorates as a result of pneumonia because inflammation

Correct Answer
verified

The nasal cavity opens into the nasopharynx through a connection known as the

Correct Answer
verified

During exercise, which of the following contract for active exhalation?

Correct Answer
verified

Alveolar ventilation refers to the

Correct Answer
verified

Total alveolar surface area is reduced in

Correct Answer
verified

Exam 23: The Respiratory System

The physical movement of air into and out of lungs is termed

Correct AnswerverifiedD

The palatine tonsils lie in the walls of the

Correct AnswerverifiedShow Answer

The function of pulmonary ventilation is to

Correct AnswerverifiedShow Answer

Anewborn infant is found dead, abandoned by the road. Among the many questions that the police would like answered is whether the infant was stillborn. How could the medical examiner tell?

Correct AnswerverifiedIf the infant had been born alive, his o...View AnswerShow Answer

Factors affecting the release of oxygen from hemoglobin can be visualized by using a

Correct AnswerverifiedShow Answer

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver getdecompression sickness?

Correct AnswerverifiedShow Answer

What occurs if intrapulmonic pressure is 763 mm Hg?

Correct AnswerverifiedB

During inhalation, air continues to move into the lungs until

Correct AnswerverifiedShow Answer

When the diaphragm and external intercostal muscles contract,

Correct AnswerverifiedShow Answer

The effect of pH on hemoglobin saturation is known as the

Correct AnswerverifiedShow Answer

The respiratory portion of the respiratory tract includes the

Correct AnswerverifiedShow Answer

The partial pressure of carbon dioxide in venous blood is approximately

Correct AnswerverifiedShow Answer

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -What is the function of the structure labeled "8"?

Correct AnswerverifiedShow Answer

What is hypercapnia? How does it affect respiration? What are common causes?

The percent of oxygen saturation of hemoglobin when the temperature is 38 degrees centigrade is

Correct AnswerverifiedShow Answer

Respiratory function deteriorates as a result of pneumonia because inflammation

Correct AnswerverifiedShow Answer

The nasal cavity opens into the nasopharynx through a connection known as the

Correct AnswerverifiedShow Answer

During exercise, which of the following contract for active exhalation?

Correct AnswerverifiedShow Answer

Alveolar ventilation refers to the

Correct AnswerverifiedShow Answer

Total alveolar surface area is reduced in

Correct AnswerverifiedShow Answer

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D

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If the infant had been born alive, his o...
View Answer

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B

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