Question 1

The first event in expiration is

Accepted Answer

A)  inter-alveolar pressure increases.
B)  elastic tissues of the lungs,thoracic cage,and abdominal organs recoil.
C)  air is squeezed out of the lungs.
D)  the diaphragm and external intercostal respiratory muscles relax.E) C) and D)
F) B) and C) D

Question 2

Increasing blood concentrations of carbon dioxide and hydrogen ions have similar effects upon the respiratory areas due to

Accepted Answer

A)  their similarity in chemical structure,inhibiting the respiratory rate.
B)  both chemically bonding,decreasing the respiratory rate.
C)  an increase in carbon dioxide,increasing hydrogen ions.
D)  both increasing pH and inhibiting the respiratory areas.E) All of the above
F) B) and C)

Question 3

Air entering the potential space of the pleural cavity is called

Accepted Answer

A)  pneumoniA.
B)  pneumothorax.
C)  pulmonary ventilation.
D)  internal respiration.E) C) and D)
F) A) and D)

Question 4

The pectoralis minors and the sternocleidomastoid are useful in aiding forced expiration.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following bones does not house a sinus?

Accepted Answer

A)  Maxillary
B)  Frontal
C)  Sphenoid
D)  ZygomaticE) None of the above
F) B) and D)

Question 6

Atelectasis is

Accepted Answer

A)  a collapsed bronchial tube.
B)  a deviated septum.
C)  a collapsed lung.
D)  a shrunken liver.E) A) and B)
F) C) and D)

Question 7

When carbon dioxide bonds to hemoglobin,the compound ______ forms.

Accepted Answer

The answer of When carbon dioxide bonds to hemoglobin,the compound...

Question 8

The procedure used to directly examine the trachea and bronchial tree is called

Accepted Answer

A)  bronchoscopy.
B)  tracheostomy.
C)  tracheotomy.
D)  laryngectomy.E) B) and D)
F) A) and B)

Question 9

Cancer that originates in the lungs is most likely to begin in

Accepted Answer

A)  epithelial cells.
B)  smooth muscle cells.
C)  dense connective tissue cells.
D)  hyaline cartilage cells.E) All of the above
F) C) and D)

Question 10

Which of the following factors does not directly affect breathing rate?

Accepted Answer

A)  Partial pressure of oxygen in body fluids.
B)  Partial pressure of carbon dioxide in body fluids.
C)  Degree of lung tissue stretch
D)  pHE) A) and B)
F) C) and D)

Question 11

Respiratory distress syndrome in newborns is caused by

Accepted Answer

A)  lack of surfactant.
B)  lack of a respiratory membrane.
C)  low oxygen concentration.
D)  high oxygen concentration.E) B) and D)
F) B) and C) A

Question 12

At high altitudes,when capillary pressure becomes too high,

Accepted Answer

A)  fluid filters out of the blood and collects in the alveoli (pulmonary edema) .
B)  blood pressure decreases.
C)  decreased breathing and heart rates.
D)  blood pH increases to pathologic levels.E) A) and D)
F) B) and D)

Question 13

Exposure to secondhand smoke can cause or increase risk of

Accepted Answer

A)  high altitude sickness and sleep apneA.
B)  heart disease,lung cancer,and low birth weight.
C)  pneumonia and tuberculosis.
D)  sarcoidosis,multiple sclerosis,and vasculitisE) B) and D)
F) All of the above

Question 14

Carbon monoxide bonds to hemoglobin more effectively than does oxygen.

Accepted Answer

A) True 
 B)False

Question 15

Breathing functions to

Accepted Answer

A)  deliver oxygen to cells,where it takes part in the reactions of cellular respiration that liberate energy from nutrient molecules and get rid of carbon dioxide,which maintains the pH of the internal environment.
B)  inflate the lungs,which forces oxygen molecules into the bloodstream.
C)  deliver carbon dioxide to cells,where it takes part in the reactions of cellular respiration that liberate energy from nutrient molecules and get rid of oxygen,which maintains the pH of the internal environment.
D)  deliver oxygen to cells,where it takes part in the reactions of cellular respiration that liberate energy from waste molecules.E) B) and D)
F) A) and B)

Question 16

The right lung has ______ lobes;the left lung has ______ lobes.

Accepted Answer

A)  superior,middle,and inferior;superior and inferior
B)  superior and inferior;superior;middle,and inferior
C)  anterior,posterior,and lateral;superior and inferior
D)  superior,middle,and inferior;anterior and posteriorE) All of the above
F) A) and C)

Question 17

In a mixture of gases,each gas creates a pressure called its ______ ______.

Accepted Answer

partial pressure

Question 18

The hypoxia associated with high altitude can cause

Accepted Answer

A)  vasodilation of the major arterial blood vessels.
B)  vasoconstriction of the pulmonary blood vessels.
C)  vasoconstriction of the coronary blood vessels.
D)  vasodilation of the major venous blood vessels.E) B) and D)
F) A) and B)

Question 19

The ease with which the lungs can be expanded during breathing is called ______.

Accepted Answer

The answer of The ease with which the lungs can...

Question 20

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

Accepted Answer

The answer of The respiratory areas are in the medulla...

Exam 19: Respiratory System

The first event in expiration is

Correct AnswerverifiedD

Increasing blood concentrations of carbon dioxide and hydrogen ions have similar effects upon the respiratory areas due to

Correct AnswerverifiedShow Answer

Air entering the potential space of the pleural cavity is called

Correct AnswerverifiedShow Answer

The pectoralis minors and the sternocleidomastoid are useful in aiding forced expiration.

Correct AnswerverifiedShow Answer

Which of the following bones does not house a sinus?

Correct AnswerverifiedShow Answer

Atelectasis is

Correct AnswerverifiedShow Answer

When carbon dioxide bonds to hemoglobin,the compound ______ forms.

Correct AnswerverifiedShow Answer

The procedure used to directly examine the trachea and bronchial tree is called

Correct AnswerverifiedShow Answer

Cancer that originates in the lungs is most likely to begin in

Correct AnswerverifiedShow Answer

Which of the following factors does not directly affect breathing rate?

Correct AnswerverifiedShow Answer

Respiratory distress syndrome in newborns is caused by

Correct AnswerverifiedA

At high altitudes,when capillary pressure becomes too high,

Correct AnswerverifiedShow Answer

Exposure to secondhand smoke can cause or increase risk of

Correct AnswerverifiedShow Answer

Carbon monoxide bonds to hemoglobin more effectively than does oxygen.

Correct AnswerverifiedShow Answer

Breathing functions to

Correct AnswerverifiedShow Answer

The right lung has ______ lobes;the left lung has ______ lobes.

Correct AnswerverifiedShow Answer

In a mixture of gases,each gas creates a pressure called its ______ ______.

Correct Answerverifiedpartial pressure

The hypoxia associated with high altitude can cause

Correct AnswerverifiedShow Answer

The ease with which the lungs can be expanded during breathing is called ______.

Correct AnswerverifiedShow Answer

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

Correct AnswerverifiedShow Answer

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A

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The right lung has lobes;the left lung has lobes.

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In a mixture of gases,each gas creates a pressure called its .

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partial pressure

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