Question 1

Intrapleural pressure is normally about 4 mm Hg less than the pressure in the alveoli.

Accepted Answer

A) True 
 B)False

Question 2

According to the oxygen-hemoglobin dissociation curve,PO2 in the lungs of 100 mm Hg results in Hb being 98% saturated.At high altitude,there is less O2.At a PO2 in the lungs of 80 mm Hg,Hb would be ________ saturated.

Accepted Answer

A)   98%
B)   less than 50%
C)   100%
D)   95%E) A) and C)
F) A) and B)

Question 3

Which respiratory-associated muscles would contract or relax during forced expiration,for example blowing up a balloon?

Accepted Answer

A)   external intercostals would contract and diaphragm would relax
B)   internal intercostals and abdominal muscles would contract
C)   diaphragm contracts, internal intercostals would relax
D)   diaphragm would contract, external intercostals would relaxE) A) and D)
F) None of the above

Question 4

The paired lungs occupy the mediastinum of the thoracic cavity.

Accepted Answer

A) True 
 B)False

Question 5

Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.

Accepted Answer

A)   active transport
B)   filtration
C)   diffusion
D)   osmosisE) All of the above
F) C) and D)

Question 6

A patient with tuberculosis is often noncompliant with treatment.Explain why this may happen.

Accepted Answer

Noncompliance may occur because of the l...

Question 7

Figure 22.1
Using Figure 22.1, match the following:
-Trachea.

Accepted Answer

A)  E
B)  A
C)  C
D)  B
E)  DF) B) and E)
G) All of the above

Question 8

A patient was admitted to the hospital with chronic obstructive pulmonary disease.His PO2 was 55 and PCO2 was 65.A new resident orders 54% oxygen via the venturi mask.One hour later,after the oxygen was placed,the nurse finds the patient with no respiration or pulse.She calls for a Code Blue and begins cardiopulmonary resuscitation (CPR).Explain why the patient stopped breathing.

Accepted Answer

In people who retain carbon dioxide beca...

Question 9

Match the following:
-Where the respiratory zone of the lungs begins.

Accepted Answer

A)  Alveolar duct
B)  Segmental (tertiary)  bronchi
C)  Type I alveolar cells
D)  Respiratory bronchioles
E)  Type II alveolar cellsF) C) and D)
G) C) and E)

Question 10

Match the following:
-TV + IRV + ERV.

Accepted Answer

A)  Inspiratory capacity
B)  Total lung capacity
C)  Vital capacity
D)  Functional residual capacityE) A) and B)
F) C) and D)

Question 11

Match the following:
-Composed of cuboidal cells.

Accepted Answer

A)  Alveolar duct
B)  Segmental (tertiary)  bronchi
C)  Type I alveolar cells
D)  Respiratory bronchioles
E)  Type II alveolar cellsF) A) and C)
G) A) and E)

Question 12

Using spirometry,a patient discovers their forced expiratory volume (FEV) after the first second is 40%.What does this suggest?

Accepted Answer

A)   exposure to asbestos
B)   restrictive disease
C)   obstructive pulmonary disease
D)   healthy lungsE) None of the above
F) B) and C)

Question 13

Select the correct statement about the neural mechanisms of respiratory control.

Accepted Answer

A)   The pons is thought to be instrumental in the smooth transition from inspiration to expiration.
B)   The dorsal respiratory group neurons depolarize in a rhythmic way to establish the pattern of breathing.
C)   The ventral respiratory group is contained within the pons.
D)   The pontine respirator group (PRG)  continuously stimulates the medulla to provide inspiratory drive.E) A) and B)
F) All of the above

Question 14

The main site of gas exchange is the ________.

Accepted Answer

A)   alveolar duct
B)   respiratory bronchiole
C)   alveoli
D)   alveolar sacsE) None of the above
F) A) and D)

Question 15

Which of the choices below is NOT a factor that promotes oxygen binding to and dissociation from hemoglobin?

Accepted Answer

A)   number of red blood cells
B)   temperature
C)   partial pressure of oxygen
D)   partial pressure of carbon dioxideE) B) and D)
F) All of the above

Question 16

The nose serves all of the following functions EXCEPT ________.

Accepted Answer

A)   cleansing the air
B)   warming and humidifying the air
C)   as a passageway for air movement
D)   as the direct initiator of the cough reflexE) All of the above
F) C) and D)

Question 17

Match the following:
-Composed of simple squamous epithelium.

Accepted Answer

A)  Alveolar duct
B)  Segmental (tertiary)  bronchi
C)  Type I alveolar cells
D)  Respiratory bronchioles
E)  Type II alveolar cellsF) B) and C)
G) B) and D)

Question 18

The contraction of the diaphragm and the external intercostal muscles begins inspiration.Explain exactly what happens,in terms of volume and pressure changes in the lungs,when these muscles contract.

Accepted Answer

With contraction of the diaphragm,the he...

Question 19

Inspiratory capacity is ________.

Accepted Answer

A)   air inspired after a tidal inhalation
B)   functional residual capacity
C)   the total amount of exchangeable air
D)   the total amount of air that can be inspired after a tidal expirationE) B) and C)
F) None of the above

Question 20

Figure 22.2
Using Figure 22.2, match the following:
-Air that does not participate in the exchange of gases.

Accepted Answer

A)  B
B)  D
C)  C
D)  AE) A) and D)
F) A) and B)

Exam 22: The Respiratory System

Correct Answer
verified
In people who retain carbon dioxide beca...
View Answer

Using spirometry,a patient discovers their forced expiratory volume (FEV) after the first second is 40%.What does this suggest?

Correct Answer
verified

Match the following: -TV + IRV + ERV.

Correct Answer
verified

A patient with tuberculosis is often noncompliant with treatment.Explain why this may happen.

Correct Answer
verified
Noncompliance may occur because of the l...
View Answer

The main site of gas exchange is the ________.

Correct Answer
verified

Match the following: -Composed of cuboidal cells.

Correct Answer
verified

Which of the choices below is NOT a factor that promotes oxygen binding to and dissociation from hemoglobin?

Correct Answer
verified

Match the following: -Composed of simple squamous epithelium.

Correct Answer
verified

According to the oxygen-hemoglobin dissociation curve,PO₂ in the lungs of 100 mm Hg results in Hb being 98% saturated.At high altitude,there is less O₂.At a PO₂ in the lungs of 80 mm Hg,Hb would be ________ saturated.

Correct Answer
verified

Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.

Correct Answer
verified

The nose serves all of the following functions EXCEPT ________.

Correct Answer
verified

The paired lungs occupy the mediastinum of the thoracic cavity.

Correct Answer
verified

Figure 22.1 Using Figure 22.1, match the following: -Trachea.

Correct Answer
verified

Inspiratory capacity is ________.

Correct Answer
verified

Select the correct statement about the neural mechanisms of respiratory control.

Correct Answer
verified

The contraction of the diaphragm and the external intercostal muscles begins inspiration.Explain exactly what happens,in terms of volume and pressure changes in the lungs,when these muscles contract.

Correct Answer
verified
With contraction of the diaphragm,the he...
View Answer

Intrapleural pressure is normally about 4 mm Hg less than the pressure in the alveoli.

Correct Answer
verified

Which respiratory-associated muscles would contract or relax during forced expiration,for example blowing up a balloon?

Correct Answer
verified

Figure 22.2 Using Figure 22.2, match the following: -Air that does not participate in the exchange of gases.

Correct Answer
verified

Match the following: -Where the respiratory zone of the lungs begins.

Correct Answer
verified

Exam 22: The Respiratory System

Correct AnswerverifiedIn people who retain carbon dioxide beca...View AnswerShow Answer

Using spirometry,a patient discovers their forced expiratory volume (FEV) after the first second is 40%.What does this suggest?

Correct AnswerverifiedShow Answer

Match the following: -TV + IRV + ERV.

Correct AnswerverifiedShow Answer

A patient with tuberculosis is often noncompliant with treatment.Explain why this may happen.

Correct AnswerverifiedNoncompliance may occur because of the l...View AnswerShow Answer

The main site of gas exchange is the ________.

Correct AnswerverifiedShow Answer

Match the following: -Composed of cuboidal cells.

Correct AnswerverifiedShow Answer

Which of the choices below is NOT a factor that promotes oxygen binding to and dissociation from hemoglobin?

Correct AnswerverifiedShow Answer

Match the following: -Composed of simple squamous epithelium.

Correct AnswerverifiedShow Answer

According to the oxygen-hemoglobin dissociation curve,PO2 in the lungs of 100 mm Hg results in Hb being 98% saturated.At high altitude,there is less O2.At a PO2 in the lungs of 80 mm Hg,Hb would be ________ saturated.

Correct AnswerverifiedShow Answer

Oxygen and carbon dioxide are exchanged in the lungs and through all cell membranes by ________.

Correct AnswerverifiedShow Answer

The nose serves all of the following functions EXCEPT ________.

Correct AnswerverifiedShow Answer

The paired lungs occupy the mediastinum of the thoracic cavity.

Correct AnswerverifiedShow Answer

Figure 22.1 Using Figure 22.1, match the following: -Trachea.

Correct AnswerverifiedShow Answer

Inspiratory capacity is ________.

Correct AnswerverifiedShow Answer

Select the correct statement about the neural mechanisms of respiratory control.

Correct AnswerverifiedShow Answer

The contraction of the diaphragm and the external intercostal muscles begins inspiration.Explain exactly what happens,in terms of volume and pressure changes in the lungs,when these muscles contract.

Correct AnswerverifiedWith contraction of the diaphragm,the he...View AnswerShow Answer

Intrapleural pressure is normally about 4 mm Hg less than the pressure in the alveoli.

Correct AnswerverifiedShow Answer

Which respiratory-associated muscles would contract or relax during forced expiration,for example blowing up a balloon?

Correct AnswerverifiedShow Answer

Figure 22.2 Using Figure 22.2, match the following: -Air that does not participate in the exchange of gases.

Correct AnswerverifiedShow Answer

Match the following: -Where the respiratory zone of the lungs begins.

Correct AnswerverifiedShow Answer

Correct Answer
verified
In people who retain carbon dioxide beca...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Noncompliance may occur because of the l...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

According to the oxygen-hemoglobin dissociation curve,PO₂ in the lungs of 100 mm Hg results in Hb being 98% saturated.At high altitude,there is less O₂.At a PO₂ in the lungs of 80 mm Hg,Hb would be ________ saturated.

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
With contraction of the diaphragm,the he...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified