Question 1

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

Accepted Answer

A) True 
 B)False

Question 2

The respiratory centers are located in the medulla oblongata and the pons of the ________.

Accepted Answer

brainstem

Question 3

The condition in which outside air enters the pleural cavity is called

Accepted Answer

A)   pneumonia.
B)   pneumothorax.
C)   pulmonary ventilation.
D)   internal respiration.
E)   alveolar ventilation.F) All of the above
G) C) and D)

Question 4

Gas exchange between the air in the alveoli and the blood in nearby capillaries occurs by the process of

Accepted Answer

A)   active transport.
B)   osmosis.
C)   diffusion.
D)   facilitated diffusion.
E)   endocytosis.F) B) and E)
G) B) and C)

Question 5

The walls of the alveoli are composed of

Accepted Answer

A)   pseudostratified ciliated columnar epithelium.
B)   simple squamous epithelium.
C)   stratified squamous epithelium.
D)   loose connective tissue.
E)   dense connective tissue.F) D) and E)
G) A) and C)

Question 6

The amount of air that enters or leaves the lungs during a respiratory cycle is the

Accepted Answer

A)   tidal volume.
B)   residual volume.
C)   vital capacity.
D)   total lung capacity.
E)   expiratory reserve volume.F) C) and D)
G) D) and E)

Question 7

Carbaminohemoglobin is formed when hemoglobin bonds with

Accepted Answer

A)   amino acids.
B)   carbon atoms.
C)   carbon dioxide.
D)   carbonic anhydrase.
E)   carbohydrates.F) A) and C)
G) A) and E)

Question 8

The potential space between the pleural membranes is called the pleural cavity.

Accepted Answer

A) True 
 B)False

Question 9

The glottis is the opening between the vocal cords.

Accepted Answer

A) True 
 B)False  True

Question 10

Cancer that originates in the lungs is most likely to develop from

Accepted Answer

A)   epithelial cells.
B)   smooth muscle cells.
C)   loose connective tissue cells.
D)   hyaline cartilage cells.
E)   nervous tissue cells.F) A) and B)
G) C) and D)

Question 11

The visceral and parietal pleural membranes are normally held together by

Accepted Answer

A)   loose connective tissue.
B)   dense connective tissue.
C)   serous fluid in the pleural cavity.
D)   surfactant in the pleural cavity.
E)   elastic connective tissue.F) B) and D)
G) A) and D)

Question 12

The receptors of the inflation reflex are most sensitive to

Accepted Answer

A)   touch.
B)   stretch.
C)   temperature changes.
D)   pH changes.
E)   oxygen levels.F) B) and E)
G) B) and D)

Question 13

The muscular action that causes air to move into the lungs during inspiration is provided by

Accepted Answer

A)   the diaphragm.
B)   internal intercostal muscles.
C)   abdominal wall muscles.
D)   expiratory intercostal muscles.
E)   all of the above.F) A) and E)
G) A) and B)

Question 14

Hyperventilation causes

Accepted Answer

A)   a decrease in plasma pCO2.
B)   an increase in plasma pCO2.
C)   a decrease in plasma PO2.
D)   a decrease in plasma pH.
E)   none of the above are correctF) A) and E)
G) A) and B) A

Question 15

The enzyme carbonic anhydrase speeds up the reaction between

Accepted Answer

A)   carbon dioxide and water.
B)   carbon dioxide and bicarbonate ions.
C)   water and bicarbonate ions.
D)   water and hydrogen ions.
E)   adjacent water molecules.F) A) and B)
G) None of the above

Question 16

The additional volume of air that can be expelled from the lungs at the end of a resting expiration is called the

Accepted Answer

A)   expiratory reserve volume.
B)   residual volume.
C)   inspiratory reserve volume.
D)   vital capacity.
E)   tidal volume.F) C) and D)
G) All of the above

Question 17

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

Accepted Answer

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

Question 18

Which of the following muscles would be most helpful for forceful expiration?

Accepted Answer

A)   diaphragm
B)   external intercostals
C)   abdominal wall muscles
D)   sternocleidomastoids
E)   all of the aboveF) D) and E)
G) C) and E)

Question 19

Breathing rate is most likely to increase if the blood level of

Accepted Answer

A)   carbon dioxide decreases.
B)   carbon dioxide increases.
C)   hydrogen ions decrease.
D)   oxygen increases.
E)   carbon dioxide stays constant.F) B) and E)
G) A) and E)

Question 20

Within a mixture of gases,the pressure created by each gas is called its ________ pressure.

Accepted Answer

The answer of Within a mixture of gases,the pressure created...

Exam 16: Respiratory System

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

Correct AnswerverifiedShow Answer

The respiratory centers are located in the medulla oblongata and the pons of the ________.

Correct Answerverifiedbrainstem

The condition in which outside air enters the pleural cavity is called

Correct AnswerverifiedShow Answer

Gas exchange between the air in the alveoli and the blood in nearby capillaries occurs by the process of

Correct AnswerverifiedShow Answer

The walls of the alveoli are composed of

Correct AnswerverifiedShow Answer

The amount of air that enters or leaves the lungs during a respiratory cycle is the

Correct AnswerverifiedShow Answer

Carbaminohemoglobin is formed when hemoglobin bonds with

Correct AnswerverifiedShow Answer

The potential space between the pleural membranes is called the pleural cavity.

Correct AnswerverifiedShow Answer

The glottis is the opening between the vocal cords.

Correct AnswerverifiedTrue

Cancer that originates in the lungs is most likely to develop from

Correct AnswerverifiedShow Answer

The visceral and parietal pleural membranes are normally held together by

Correct AnswerverifiedShow Answer

The receptors of the inflation reflex are most sensitive to

Correct AnswerverifiedShow Answer

The muscular action that causes air to move into the lungs during inspiration is provided by

Correct AnswerverifiedShow Answer

Hyperventilation causes

Correct AnswerverifiedA

The enzyme carbonic anhydrase speeds up the reaction between

Correct AnswerverifiedShow Answer

The additional volume of air that can be expelled from the lungs at the end of a resting expiration is called the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following muscles would be most helpful for forceful expiration?

Correct AnswerverifiedShow Answer

Breathing rate is most likely to increase if the blood level of

Correct AnswerverifiedShow Answer

Within a mixture of gases,the pressure created by each gas is called its ________ pressure.

Correct AnswerverifiedShow Answer

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True

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A

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