Question 1

-In this close-up image of a lung,what structure does number 1 indicate?

Accepted Answer

A)  Respiratory bronchiole
B)  Alveolar duct
C)  Alveolus
D)  Terminal bronchiole
E)  BronchioleF) A) and D)
G) A) and C)

Question 2

During pulmonary ventilation,relaxation of the diaphragm and external intercostals _________ and air flows out of the lungs.

Accepted Answer

A)  increases the volume of the thoracic cavity
B)  increases the pressure in the thoracic cavity
C)  expands the rib cage
D)  flattens the floor of the thoracic cavity
E)  stimulates the phrenic nerveF) B) and E)
G) A) and B)

Question 3

Following an automobile accident,a broken rib penetrates into the pleural cavity causing a lung to collapse.What condition is this?

Accepted Answer

A)  Pneumothorax
B)  Atelectasis
C)  Tension pneumothorax
D)  Hemothorax
E)  Cystic fibrosisF) B) and D)
G) B) and E)

Question 4

-This figure shows respiratory control centers in the brainstem.What does number 1 indicate?

Accepted Answer

A)  Pontine respiratory center
B)  Apneustic center
C)  Dorsal respiratory group
D)  Ventral respiratory groupE) C) and D)
F) B) and D)

Question 5

-This figure shows respiratory control centers in the brainstem.What does number 3 indicate?

Accepted Answer

A)  Pontine respiratory center
B)  Central chemoreceptors
C)  Dorsal respiratory group
D)  Ventral respiratory groupE) All of the above
F) None of the above

Question 6

-Which sinus does the number 1 indicate?

Accepted Answer

A)  Frontal sinus
B)  Anterior sinus
C)  Ethmoidal sinus
D)  Maxillary sinus
E)  Sphenoidal sinusF) B) and D)
G) B) and E)

Question 7

Sudden infant death syndrome (SIDS),also known as crib death,occurs more often when babies sleep on their stomach.

Accepted Answer

A) True 
 B)False

Question 8

Foreign particles

Accepted Answer

A)  are more likely to lodge in the right primary bronchus.
B)  are more likely to lodge in the left primary bronchus.
C)  can lodge equally in either the right or left bronchi.D) A) and B)
E) All of the above

Question 9

These muscles increase thoracic cavity dimensions by elevating the first and second ribs during forced inhalation.

Accepted Answer

A)  External intercostals
B)  Scalenes
C)  Transversus thoracis
D)  Internal intercostals
E)  Serratus posterior inferiorF) A) and E)
G) C) and D)

Question 10

This muscle extends across the inner surface of the thoracic cage and attaches to ribs 2-6.It helps depress the ribs.

Accepted Answer

A)  External intercostal
B)  Scalene
C)  Transversus thoracis
D)  Internal intercostal
E)  Serratus posterior inferiorF) All of the above
G) A) and C)

Question 11

Which is not correct about the left lung?

Accepted Answer

A)  It is slightly smaller than the right lung.
B)  It has a cardiac impression.
C)  It has a cardiac notch.
D)  It has 2 lobes and 1 fissure.
E)  It has an esophageal depression.F) A) and B)
G) A) and C)

Question 12

Bronchioles are kept open by

Accepted Answer

A)  rings of cartilage.
B)  plates of cartilage.
C)  skeletal muscle.
D)  smooth muscle.
E)  layers of epithelium.F) B) and E)
G) C) and E)

Question 13

The embryonic respiratory diverticulum is formed from

Accepted Answer

A)  ectoderm.
B)  mesoderm.
C)  endoderm.D) B) and C)
E) A) and C)

Question 14

Organize the items listed into the proper sequence of events for gas exchange.
A: O2 is transported to cells by circulatory system
B: O2 is drawn into the lungs during inhalation
C: Cells use O2 and generate CO2
d: CO2 is exhaled
E: The circulatory system transports CO2 to the lungs

Accepted Answer

A)  a,b,c,d,e
B)  b,a,c,d,e
C)  b,a,c,e,d
D)  c,e,d,a,b
E)  e,d,c,b,aF) A) and B)
G) C) and E)

Question 15

Prematurely born infants sometimes experience respiratory distress due to inadequate production of surfactant.

Accepted Answer

A) True 
 B)False

Question 16

Which is not part of the respiratory membrane?

Accepted Answer

A)  Capillary endothelium
B)  Fused basement membrane
C)  Plasma membrane of type I cell
D)  Plasma membrane of type II cellE) None of the above
F) A) and D)

Question 17

At rest,a normal person breathes about _____ times per minute.

Accepted Answer

A)  8
B)  16
C)  26
D)  32
E)  50F) B) and E)
G) All of the above

Question 18

-In these views of the larynx,what structure does number 4 indicate?

Accepted Answer

A)  Tracheal cartilage
B)  Thyroid cartilage
C)  Arytenoid cartilage
D)  Cricoid cartilage
E)  Corniculate cartilageF) None of the above
G) A) and E)

Question 19

-In these views of the larynx,what structure does number 3 indicate?

Accepted Answer

A)  Tracheal cartilage
B)  Thyroid cartilage
C)  Epiglottis
D)  Cricoid cartilage
E)  Corniculate cartilageF) A) and B)
G) A) and D)

Question 20

Which statement is true regarding secondary bronchi?

Accepted Answer

A)  The right lung has two secondary bronchi and the left lung has three secondary bronchi.
B)  The left lung has two secondary bronchi and the right lung has three secondary bronchi.
C)  Each lung has two secondary bronchi.
D)  Each lung has three secondary bronchi.
E)  Each lung has four secondary bronchi.F) A) and E)
G) D) and E)

Exam 25: Respiratory System

-In these views of the larynx,what structure does number 3 indicate?

Correct AnswerverifiedShow Answer

Sudden infant death syndrome (SIDS),also known as crib death,occurs more often when babies sleep on their stomach.

Correct AnswerverifiedShow Answer

Which is not correct about the left lung?

Correct AnswerverifiedShow Answer

Foreign particles

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Organize the items listed into the proper sequence of events for gas exchange. A: O2 is transported to cells by circulatory system B: O2 is drawn into the lungs during inhalation C: Cells use O2 and generate CO2 d: CO2 is exhaled E: The circulatory system transports CO2 to the lungs

Correct AnswerverifiedShow Answer

During pulmonary ventilation,relaxation of the diaphragm and external intercostals _________ and air flows out of the lungs.

Correct AnswerverifiedShow Answer

The embryonic respiratory diverticulum is formed from

Correct AnswerverifiedShow Answer

Prematurely born infants sometimes experience respiratory distress due to inadequate production of surfactant.

Correct AnswerverifiedShow Answer

Following an automobile accident,a broken rib penetrates into the pleural cavity causing a lung to collapse.What condition is this?

Correct AnswerverifiedShow Answer

-Which sinus does the number 1 indicate?

Correct AnswerverifiedShow Answer

Bronchioles are kept open by

Correct AnswerverifiedShow Answer

These muscles increase thoracic cavity dimensions by elevating the first and second ribs during forced inhalation.

Correct AnswerverifiedShow Answer

-In these views of the larynx,what structure does number 4 indicate?

Correct AnswerverifiedShow Answer

This muscle extends across the inner surface of the thoracic cage and attaches to ribs 2-6.It helps depress the ribs.

Correct AnswerverifiedShow Answer

-In this close-up image of a lung,what structure does number 1 indicate?

Correct AnswerverifiedShow Answer

At rest,a normal person breathes about _____ times per minute.

Correct AnswerverifiedShow Answer

-This figure shows respiratory control centers in the brainstem.What does number 1 indicate?

Correct AnswerverifiedShow Answer

Which is not part of the respiratory membrane?

Correct AnswerverifiedShow Answer

-This figure shows respiratory control centers in the brainstem.What does number 3 indicate?

Correct AnswerverifiedShow Answer

Which statement is true regarding secondary bronchi?

Correct AnswerverifiedShow Answer

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Organize the items listed into the proper sequence of events for gas exchange. A: O₂ is transported to cells by circulatory system B: O₂ is drawn into the lungs during inhalation C: Cells use O₂ and generate CO₂d: CO₂ is exhaled E: The circulatory system transports CO₂ to the lungs

Correct Answer
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