Question 1

The Hering-Breuer reflex

Accepted Answer

A)   functions to increase ventilation with changes in blood pressure.
B)   alters pulmonary ventilation when the PO2 changes.
C)   alters pulmonary ventilation when the PCO2 changes.
D)   protects the lungs from damage due to overinflation.
E)   is an important aspect of normal, quiet breathing.

Question 2

Lung tissue receives oxygen and nutrients from the

Accepted Answer

A)   pleural arteries.
B)   pulmonary arteries.
C)   pulmonary veins.
D)   coronary arteries.
E)   bronchial arteries.

Question 3

Figure 23-1 The Upper Airways
 
Use Figure 23-1 to answer the following questions:
-Identify the structure labeled "7."

Accepted Answer

A)   internal nares
B)   esophagus
C)   glottis
D)   oropharynx
E)   laryngopharynx

Question 4

The larynx contains ________ cartilages.

Accepted Answer

A)   14
B)   6
C)   9
D)   2
E)   5

Question 5

Prolonged inspirations can result from stimulating the ________ center.

Accepted Answer

A)   apneustic
B)   pneumotaxic
C)   expiratory
D)   baroreceptor
E)   chemoreceptor

Question 6

________ is the amount of air that moves into the respiratory system during a single respiratory cycle.

Accepted Answer

A)   Residual volume
B)   Expiratory reserve volume
C)   Inspiratory reserve volume
D)   Tidal volume
E)   Inspiratory capacity

Question 7

________ is the most common lethal inherited disease affecting individuals of Northern European descent.

Accepted Answer

A)   MRSA
B)   Congestive heart failure
C)   Cystic fibrosis
D)   Myasthenia gravis
E)   Parkinson's disease

Question 8

The C shape of the tracheal cartilages is important because

Accepted Answer

A)   large masses of food can move through the esophagus.
B)   large masses of air can pass through the trachea and thus the bronchi.
C)   it facilitates turning of the head.
D)   the bronchi are also C-shaped.
E)   it permits the trachea to pinch shut prior to sneezing.

Question 9

The laryngeal cartilage which is not composed of hyaline cartilage is the

Accepted Answer

A)   arytenoid.
B)   corniculate.
C)   cricoid.
D)   epiglottis.
E)   thyroid.

Question 10

Primary bronchi enter their respective lungs along with pulmonary vessels, nerves, and lymphatics at whichregion?

Accepted Answer

A)   base
B)   apex
C)   hilum
D)   cardiac notch
E)   superior lobe

Question 11

The process by which dissolved gases are exchanged between the cells and interstitial fluids is

Accepted Answer

A)   pulmonary ventilation.
B)   external respiration.
C)   internal respiration.
D)   cellular respiration.
E)   breathing.

Question 12

Most of the oxygen transported by the blood is

Accepted Answer

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

Question 13

The right lung is to ________ as the left lung is to ________.

Accepted Answer

A)   three lobes; two lobes
B)   two lobes; two lobes
C)   two lobes; three lobes
D)   three lobes; three lobes
E)   four lobes; three lobes

Question 14

Each 100 ml of blood leaving the alveolar capillaries carries away roughly ________ ml of oxygen.

Accepted Answer

A)   10
B)   20
C)   30
D)   50
E)   75

Question 15

At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________ percent saturated with oxygen.

Accepted Answer

A)   10
B)   25
C)   50
D)   75
E)   more than 90

Question 16

The largest cartilage of the larynx is the ________ cartilage.

Accepted Answer

A)   thyroid
B)   cricoid
C)   cuneiform
D)   arytenoid
E)   epiglottic

Question 17

The conchae

Accepted Answer

A)   divide the nasal cavity into a right and a left side.
B)   provide an opening into the pharynx.
C)   provide a increase in surface area for the sense of smell.
D)   create turbulence in the air to trap particulate matter in mucus.
E)   provide an opening to paranasal sinuses.

Question 18

________ is the amount of air that you can inhale above the resting tidal volume.

Accepted Answer

A)   Residual inhaled volume
B)   Expiratory reserve volume
C)   Inspiratory reserve volume
D)   Enhanced tidal volume
E)   Inspiratory capacity

Question 19

Tina is singing a song. At a certain point in the song, she forces a large volume of air out of the glottisand at the same time increases the tension on her vocal cords. The sound that she produces is

Accepted Answer

A)   low pitched and loud.
B)   high pitched and loud.
C)   low pitched and soft.
D)   high pitched and soft.
E)   medium pitched and soft.

Question 20

The larynx, trachea, bronchi, and bronchioles all make up the

Accepted Answer

A)   upper respiratory tract.
B)   lower respiratory tract.
C)   internal respiratory tract.
D)   alveoli of the respiratory tract.
E)   respiratory mucosa.

Exam 23: The Respiratory System

Prolonged inspirations can result from stimulating the ________ center.

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At a PO2 of 70 mm Hg and normal temperature and pH, hemoglobin is ________ percent saturated with oxygen.

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The laryngeal cartilage which is not composed of hyaline cartilage is the

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________ is the amount of air that moves into the respiratory system during a single respiratory cycle.

Correct AnswerverifiedShow Answer

________ is the amount of air that you can inhale above the resting tidal volume.

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The process by which dissolved gases are exchanged between the cells and interstitial fluids is

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Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -Identify the structure labeled "7."

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________ is the most common lethal inherited disease affecting individuals of Northern European descent.

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The Hering-Breuer reflex

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The larynx, trachea, bronchi, and bronchioles all make up the

Correct AnswerverifiedShow Answer

The largest cartilage of the larynx is the ________ cartilage.

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The larynx contains ________ cartilages.

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Lung tissue receives oxygen and nutrients from the

Correct AnswerverifiedShow Answer

Most of the oxygen transported by the blood is

Correct AnswerverifiedShow Answer

The C shape of the tracheal cartilages is important because

Correct AnswerverifiedShow Answer

Primary bronchi enter their respective lungs along with pulmonary vessels, nerves, and lymphatics at whichregion?

Correct AnswerverifiedShow Answer

Tina is singing a song. At a certain point in the song, she forces a large volume of air out of the glottisand at the same time increases the tension on her vocal cords. The sound that she produces is

Correct AnswerverifiedShow Answer

Each 100 ml of blood leaving the alveolar capillaries carries away roughly ________ ml of oxygen.

Correct AnswerverifiedShow Answer

The conchae

Correct AnswerverifiedShow Answer

The right lung is to ________ as the left lung is to ________.

Correct AnswerverifiedShow Answer

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The right lung is to as the left lung is to .

Correct Answer
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