Question 1

Which region(s)  of the pharynx is lined by pseudostratified ciliated columnar epithelium?

Accepted Answer

A)   Oropharynx
B)   Nasopharynx
C)   Laryngopharynx
D)   Oropharynx and nasopharynx
E)   Oropharynx, nasopharynx, and laryngopharynxF) A) and E)
G) A) and B)

Question 2

The exchange of oxygen and carbon dioxide between the air in the alveoli and blood in the lungs is called

Accepted Answer

A)   ventilation.
B)   systemic respiration.
C)   internal respiration.
D)   external respiration.
E)   cellular respiration.F) A) and B)
G) A) and C)

Question 3

Pulmonary fibrosis

Accepted Answer

A)   decreases elasticity, thereby increasing resistance and decreasing airflow.
B)   increases elasticity, thereby increasing resistance and decreasing airflow.
C)   decreases elasticity, thereby decreasing both resistance and airflow.
D)   increases elasticity, thereby decreasing resistance and increasing airflow.E) All of the above
F) A) and B)

Question 4

Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucous covering.

Accepted Answer

A) True 
 B)False

Question 5

The depth and rate of respiration influence blood levels of hydrogen ion.

Accepted Answer

A) True 
 B)False

Question 6

List, in order, the structures of the respiratory membrane that carbon dioxide must cross to move from the blood into an air sac of the lung.

Accepted Answer

The carbon dioxide must pass t...

Question 7

Inspiratory capacity is greater than inspiratory reserve volume.

Accepted Answer

A) True 
 B)False

Question 8

Two individuals of the same size (same dead space)  have a pulmonary ventilation rate of 6 L/min, but one is breathing 10 breaths/min and the other is breathing 15 breaths/min. How do their alveolar ventilation rates compare?

Accepted Answer

A)   The slower breather has a greater alveolar ventilation rate.
B)   The faster breather has a greater alveolar ventilation rate.
C)   Their alveolar ventilation rates are equivalent.D) A) and B)
E) All of the above

Question 9

Where would you find the trachealis muscle?

Accepted Answer

A)   Between the esophagus and the diaphragm
B)   Between the trachea and the diaphragm
C)   Superior to the larynx
D)   Between the esophagus and the trachea
E)   Between the larynx and the pharynxF) B) and E)
G) D) and E)

Question 10

Which of the two lungs is larger and wider?

Accepted Answer

A)   The left lung
B)   The right lungC) A) and B)
D) undefined

Question 11

When central chemoreceptors detect a drop in the pH of the cerebrospinal fluid,

Accepted Answer

A)   medullary respiratory centers trigger an increase in rate and depth of breathing.
B)   medullary respiratory centers trigger a decrease in rate and depth of breathing.
C)   pontine respiratory centers trigger a decrease in rate and depth of breathing.
D)   the vagus and phrenic nerves stimulate decreased production of the catalyst carbonic anhydrase.E) None of the above
F) A) and B)

Question 12

What structure connects the larynx to the primary bronchi?

Accepted Answer

A)   Trachea
B)   Pharynx
C)   Esophagus
D)   Bronchioles
E)   Alveolar ductsF) D) and E)
G) A) and B)

Question 13

Alveoli abut each other, causing them to appear ________ in cross section.

Accepted Answer

A)   enlarged
B)   polygonal
C)   stratified
D)   circular
E)   columnarF) None of the above
G) A) and C)

Question 14

Control of pulmonary ventilation. 
-In this sagittal section showing the upper respiratory tract, what number indicates a nasal concha?

Accepted Answer

A)   1
B)   2
C)   3
D)   4
E)   5F) A) and E)
G) All of the above

Question 15

Contraction of these muscles depresses the ribs, but only during forced exhalation.

Accepted Answer

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

Question 16

Gross & microscopic anatomy of the respiratory tract & related organs. 
-In this closeup image of a lung, what structure does number 2 indicate?

Accepted Answer

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

Question 17

Gross & microscopic anatomy of the respiratory tract & related organs. 
-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 C)
G) A) and E)

Question 18

Relaxation of the smooth muscle within the walls of bronchioles leads to ________.

Accepted Answer

The answer of Relaxation of the smooth muscle within the...

Question 19

Which is not part of the conducting portion of the respiratory system?

Accepted Answer

A)   Alveoli
B)   Trachea
C)   Larynx
D)   Nasal cavity
E)   BronchiF) A) and E)
G) B) and C)

Question 20

Gross & microscopic anatomy of the respiratory tract & related organs. 
-Which sinus does the number 1 indicate?

Accepted Answer

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

Exam 23: Respiratory System

The exchange of oxygen and carbon dioxide between the air in the alveoli and blood in the lungs is called

Correct AnswerverifiedShow Answer

Relaxation of the smooth muscle within the walls of bronchioles leads to ________.

Correct AnswerverifiedShow Answer

Gross & microscopic anatomy of the respiratory tract & related organs. -In this closeup image of a lung, what structure does number 2 indicate?

Correct AnswerverifiedShow Answer

Which of the two lungs is larger and wider?

Correct AnswerverifiedShow Answer

List, in order, the structures of the respiratory membrane that carbon dioxide must cross to move from the blood into an air sac of the lung.

Correct AnswerverifiedThe carbon dioxide must pass t...View AnswerShow Answer

Alveoli abut each other, causing them to appear ________ in cross section.

Correct AnswerverifiedShow Answer

Gross & microscopic anatomy of the respiratory tract & related organs. -Which sinus does the number 1 indicate?

Correct AnswerverifiedShow Answer

Olfactory receptors located in the superior region of the nasal cavity are stimulated when airborne molecules are inhaled and dissolved in the mucous covering.

Correct AnswerverifiedShow Answer

Contraction of these muscles depresses the ribs, but only during forced exhalation.

Correct AnswerverifiedShow Answer

Which region(s) of the pharynx is lined by pseudostratified ciliated columnar epithelium?

Correct AnswerverifiedShow Answer

Gross & microscopic anatomy of the respiratory tract & related organs. -In this close-up image of a lung, what structure does number 1 indicate?

Correct AnswerverifiedShow Answer

When central chemoreceptors detect a drop in the pH of the cerebrospinal fluid,

Correct AnswerverifiedShow Answer

The depth and rate of respiration influence blood levels of hydrogen ion.

Correct AnswerverifiedShow Answer

Pulmonary fibrosis

Correct AnswerverifiedShow Answer

Control of pulmonary ventilation. -In this sagittal section showing the upper respiratory tract, what number indicates a nasal concha?

Correct AnswerverifiedShow Answer

Inspiratory capacity is greater than inspiratory reserve volume.

Correct AnswerverifiedShow Answer

Which is not part of the conducting portion of the respiratory system?

Correct AnswerverifiedShow Answer

What structure connects the larynx to the primary bronchi?

Correct AnswerverifiedShow Answer

Two individuals of the same size (same dead space) have a pulmonary ventilation rate of 6 L/min, but one is breathing 10 breaths/min and the other is breathing 15 breaths/min. How do their alveolar ventilation rates compare?

Correct AnswerverifiedShow Answer

Where would you find the trachealis muscle?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The carbon dioxide must pass t...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified