Question 1

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) A) and B)
G) B) and E)

Question 2

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

Accepted Answer

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

Question 3

The bronchial circulation is a component of the pulmonary circulation.

Accepted Answer

A) True 
 B)False

Question 4

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

Accepted Answer

A)  8
B)  16
C)  26
D)  32
E)  50F) B) and D)
G) A) 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) None of the above
F) B) and D)

Question 6

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) A) and B)
G) B) and E)

Question 7

You may have noticed that after a large meal you have had some difficulty breathing.Which explanation is most accurate with regard to this situation?

Accepted Answer

A)  The food presses on the bronchi making air flow difficult.
B)  The large quantity of food retards pulmonary blood flow.
C)  Oxygen to the lungs is restricted due to fullness in the stomach.
D)  A full stomach impedes contraction of the diaphragm,limiting inhalation.
E)  It's just difficult to fill the lungs since blood-filled oxygen is flowing primarily to the stomach.F) C) and E)
G) B) and E)

Question 8

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) A) and B)
F) A) and C)

Question 9

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) A) and B)
G) None of the above

Question 10

-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) B) and D)
G) B) and C)

Question 11

Which is not a regulatory center for respiration?

Accepted Answer

A)  Apneustic center
B)  Pulmonary center
C)  Pneumotaxic center
D)  Respiratory rhythmicity centerE) B) and D)
F) B) and C)

Question 12

The involuntary,rhythmic activities that deliver and remove respiratory gases are regulated in the

Accepted Answer

A)  brainstem.
B)  midbrain.
C)  cerebellum.
D)  cerebral nuclei.
E)  occipital lobe of the brain.F) A) and B)
G) A) and D)

Question 13

Which does not prevent entrance of foreign bodies into the respiratory system?

Accepted Answer

A)  Nasal hairs
B)  Twisted passageways
C)  Saliva
D)  Mucus
E)  LysozymeF) C) and E)
G) B) and D)

Question 14

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 D)
G) B) and E)

Question 15

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) None of the above
G) A) and C)

Question 16

Approximately how long after birth do alveoli continue to develop?

Accepted Answer

A)  8 weeks
B)  18 weeks
C)  8 months
D)  18 months
E)  8 yearsF) None of the above
G) B) and C)

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

Several things happen to inhaled air in a process called conditioning.Select the exception.

Accepted Answer

A)  The air is cooled.
B)  The air is humidified.
C)  The air is cleansed.
D)  The air is moistened.
E)  The air becomes turbulent.F) None of the above
G) D) and E)

Question 19

Into what region of the pharynx do auditory tubes open?

Accepted Answer

A)  Oropharynx
B)  Nasopharynx
C)  LaryngopharynxD) B) and C)
E) A) and C)

Question 20

Paranasal sinuses are not found within the

Accepted Answer

A)  sphenoid bone.
B)  frontal bone.
C)  ethmoid bone.
D)  mandible.
E)  maxilla.F) B) and E)
G) All of the above

Exam 25: Respiratory System

The bronchial circulation is a component of the pulmonary circulation.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which is not a regulatory center for respiration?

Correct AnswerverifiedShow Answer

Which is not part of the respiratory membrane?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Bronchioles are kept open by

Correct AnswerverifiedShow Answer

Which is not correct about the left lung?

Correct AnswerverifiedShow Answer

Several things happen to inhaled air in a process called conditioning.Select the exception.

Correct AnswerverifiedShow Answer

You may have noticed that after a large meal you have had some difficulty breathing.Which explanation is most accurate with regard to this situation?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Paranasal sinuses are not found within the

Correct AnswerverifiedShow Answer

Approximately how long after birth do alveoli continue to develop?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which does not prevent entrance of foreign bodies into the respiratory system?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

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

Into what region of the pharynx do auditory tubes open?

Correct AnswerverifiedShow Answer

The involuntary,rhythmic activities that deliver and remove respiratory gases are regulated in the

Correct AnswerverifiedShow Answer

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