Question 1

The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n)

Accepted Answer

A)   debris filter.
B)   mucus escalator.
C)   respiratory rhythmicity center.
D)   smooth slick surface allowing particles to slide.
E)   increased surface area for gas exchange.

Question 2

An acute infection of the throat that can lead to swelling and closure of the glottis and cause suffocationis known as

Accepted Answer

A)   laryngitis.
B)   laryngospasm.
C)   acute epiglottitis.
D)   strep throat.
E)   acute pharyngitis.

Question 3

Figure 23-1 The Upper Airways
 
Use Figure 23-1 to answer the following questions:
-What is the function of the structure labeled "5"?

Accepted Answer

A)   help olfaction
B)   improve warming of air
C)   cause air to swirl within the respiratory passageway
D)   prevent food from entering the larynx
E)   prevent food from entering the nasopharynx

Question 4

In-Text Figure Based Questions
-Name the primary muscles of inspiration. (Figure 23-14)

Accepted Answer

A)   internal intercostal muscles and external intercostal muscles
B)   diaphragm and internal intercostal muscles
C)   diaphragm and external intercostal muscles
D)   rectus abdominis and transversus thoracis
E)   serratus anterior and rectus abdominus

Question 5

The ________ is lined by stratified squamous epithelium.

Accepted Answer

A)   nasopharynx
B)   trachea
C)   oropharynx
D)   larynx
E)   nasal cavity

Question 6

Which of the following is not a true statement?

Accepted Answer

A)   The DRG primarily controls inspiration.
B)   The VRG primarily controls expiration.
C)   The DRG functions in forced breathing only.
D)   The VRG functions in forced breathing only.
E)   The DRG controls external intercostals and the diaphragm.

Question 7

Which of these factors does not affect hemoglobin's affinity for oxygen?

Accepted Answer

A)   RBC metabolic activity
B)   temperature
C)   electrolyte balance
D)   the PO2 of blood
E)   blood pH

Question 8

The pneumotaxic center of the pons

Accepted Answer

A)   sets the at-rest respiratory pattern.
B)   prolongs inspiration.
C)   modifies the rate and depth of breathing.
D)   suppresses the expiratory center in the medulla.
E)   stimulates the dorsal respiratory group.

Question 9

A patient with a connective tissue disease experiences increased pulmonary vascular resistance. Over a period of time, you would expect to observe

Accepted Answer

A)   increased cardiac output from the right ventricle.
B)   increased cardiac output from the left ventricle.
C)   increased thickness of the right ventricular wall.
D)   distension of the pulmonary veins from the right lung.
E)   no appreciable changes in heart structure or function.

Question 10

The condition resulting from inadequate production of surfactant and the resultant collapse of alveoli is

Accepted Answer

A)   respiratory distress syndrome.
B)   COPD.
C)   anoxia.
D)   pulmonary embolism.
E)   pneumothorax.

Question 11

JJ is suffering from laryngitis. He will most likely experience which of the following symptoms?

Accepted Answer

A)   coughing
B)   hoarseness
C)   sneezing
D)   suffocation
E)   impaired swallowing

Question 12

During a choking episode, most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.

Accepted Answer

A)   right primary
B)   left primary
C)   right lobar
D)   left lobar
E)   medial

Question 13

What is one atmosphere of pressure?

Accepted Answer

A)   760 mm Hg
B)   1000 mm Hg
C)   105 mm Hg
D)   45 mm Hg
E)   650 mm Hg

Question 14

The openings to the nasal cavity are the

Accepted Answer

A)   external nares.
B)   internal nares.
C)   nasal meatuses.
D)   nasal conchae.
E)   nasal sinuses.

Question 15

Figure 23-2 Mechanics of Ventilation
 
Use Figure 23-2 to answer the following questions:
-Which muscle(s)  produce(s)  the movement labeled "1"?

Accepted Answer

A)   rectus abdominis
B)   internal intercostals
C)   external intercostals
D)   diaphragm
E)   both rectus abdominis and external intercostals

Question 16

Which pressure remains negative throughout the respiratory cycle?

Accepted Answer

A)   intrapulmonary
B)   intrapleural
C)   intra-alveolar
D)   atmospheric
E)   intrapulmonary and intra-alveolar

Question 17

Higher brain centers that alter the activity of the respiratory centers include all of the following except

Accepted Answer

A)   cortical association areas.
B)   the precentral motor gyrus.
C)   the limbic system.
D)   the hypothalamus.
E)   Broca's center.

Question 18

Which of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheraltissues?

Accepted Answer

A)   decreased temperature
B)   decreased pH
C)   increased tissue PO2
D)   decreased amounts of BPG
E)   decreased temperature and decreased amounts of BPG

Question 19

Quiet breathing is to ________ as shallow breathing is to ________.

Accepted Answer

A)   eupnea; diaphragmatic breathing
B)   eupnea; costal breathing
C)   costal breathing; eupnea
D)   costal breathing; diaphragmatic
E)   diaphragmatic breathing; eupnea

Question 20

Boyle's law states that the pressure of a gas is

Accepted Answer

A)   inversely proportional to the volume of its container.
B)   always higher in the atmosphere than in the lungs.
C)   directly proportional to temperature.
D)   inversely proportional to temperature.
E)   directly proportional to the volume of its container.

Exam 23: The Respiratory System

The pneumotaxic center of the pons

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Which of these factors does not affect hemoglobin's affinity for oxygen?

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The condition resulting from inadequate production of surfactant and the resultant collapse of alveoli is

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Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following questions: -Which muscle(s) produce(s) the movement labeled "1"?

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An acute infection of the throat that can lead to swelling and closure of the glottis and cause suffocationis known as

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Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -What is the function of the structure labeled "5"?

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Which of the following is not a true statement?

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JJ is suffering from laryngitis. He will most likely experience which of the following symptoms?

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Which of the following factors would increase the amount of oxygen discharged by hemoglobin to peripheraltissues?

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The beating of the cilia of the respiratory passages in the direction of the pharynx forms a(n)

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In-Text Figure Based Questions -Name the primary muscles of inspiration. (Figure 23-14)

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Boyle's law states that the pressure of a gas is

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Which pressure remains negative throughout the respiratory cycle?

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Quiet breathing is to ________ as shallow breathing is to ________.

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The ________ is lined by stratified squamous epithelium.

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Higher brain centers that alter the activity of the respiratory centers include all of the following except

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During a choking episode, most foreign objects are lodged in the ________ bronchus due to its larger diameter and steeper angle.

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What is one atmosphere of pressure?

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The openings to the nasal cavity are the

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A patient with a connective tissue disease experiences increased pulmonary vascular resistance. Over a period of time, you would expect to observe

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Quiet breathing is to as shallow breathing is to .

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