Question 1

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) C) and D)

Question 2

Inhaled air is humidified and warmed by the

Accepted Answer

A)  nasal cavity and the pharynx.
B)  nasal cavity and the larynx.
C)  nasal cavity and the paranasal sinuses.
D)  pharynx and the paranasal sinuses.
E)  tonsils and the paranasal sinuses.F) A) and B)
G) D) and E)

Question 3

What prevents the trachea from collapsing?

Accepted Answer

A)  The internal air pressure within the trachea
B)  The surrounding muscles
C)  The internal epithelium
D)  The C-shaped cartilaginous rings
E)  Nothing,it pulsates (expands and contracts) with each breath.F) C) and D)
G) B) and E)

Question 4

Which statement is untrue regarding the oropharynx?

Accepted Answer

A)  It houses the paired palatine tonsils.
B)  It is located posterior to the oral cavity.
C)  It houses the lingual tonsils.
D)  It houses the pharyngeal tonsil.
E)  It extends from the soft palate to the level of the hyoid bone.F) A) and D)
G) A) and C)

Question 5

The bronchial circulation is a component of the pulmonary circulation.

Accepted Answer

A) True 
 B)False

Question 6

What structures actually produce sound?

Accepted Answer

A)  Vestibular folds
B)  Paranasal sinuses
C)  Arytenoid cartilages
D)  Vestibular ligaments
E)  Vocal foldsF) B) and D)
G) B) and E)

Question 7

What structure prevents food and drink from entering the trachea,conducts air,and produces sound?

Accepted Answer

A)  Esophagus
B)  Bronchi
C)  Pharynx
D)  Nasal cavity
E)  LarynxF) A) and C)
G) B) and E)

Question 8

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) C) and D)
G) A) and D)

Question 9

-In these views of the trachea,what type of tissue does number 4 indicate?

Accepted Answer

A)  Keratinized stratified squamous epithelium
B)  Pseudostratified ciliated columnar epithelium
C)  Mucous connective tissue
D)  Ciliated simple columnar epithelium
E)  FibrocartilageF) A) and C)
G) A) and D)

Question 10

-In these views of the trachea,what structure does number 1 indicate?

Accepted Answer

A)  Trachealis muscle
B)  Pseudostratified ciliated columnar epithelium
C)  Goblet cell
D)  Anular ligament
E)  CarinaF) A) and C)
G) B) and D)

Question 11

What type of tissue lines the trachea?

Accepted Answer

A)  Cuboidal epithelium
B)  Simple squamous epithelium
C)  Stratified squamous keratinized epithelium
D)  Stratified squamous nonkeratinized epithelium
E)  Pseudostratified ciliated columnar epitheliumF) A) and E)
G) B) and C)

Question 12

-In this close-up image of a lung,what structures are indicated by number 4?

Accepted Answer

A)  Respiratory bronchioles
B)  Alveolar ducts
C)  Alveoli
D)  Terminal bronchioles
E)  BronchiolesF) A) and D)
G) A) and C)

Question 13

Each lung consists of a number of segments called

Accepted Answer

A)  alveolar segments.
B)  bronchopulmonary segments.
C)  mesothelial segments.
D)  pleural segments.
E)  systemic segments.F) A) and C)
G) All of the above

Question 14

Which is not a change associated with the aging of the respiratory system?

Accepted Answer

A)  Increase in the elastic connective tissue in the lungs and the thoracic cavity wall
B)  Reduction in the amount of gas that can be exchanged
C)  Decrease in the ventilation rate
D)  Reduction in the number of alveoli
E)  Accumulation of carbon,dust,and pollution in the lungsF) A) and E)
G) A) and B)

Question 15

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) A) and E)
G) A) and D)

Question 16

Where would you find mesothelium?

Accepted Answer

A)  Lining the inside of the alveoli
B)  Covering the trachea
C)  On the outer surface of the lungs
D)  On the inner surface of the thoracic walls
E)  Two of these answers are correct.F) A) and B)
G) C) and D)

Question 17

Which center inhibits the activity of the dorsal respiratory group (DRG) ?

Accepted Answer

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

Question 18

The hilum of the lung

Accepted Answer

A)  is an indented area through which the bronchi,pulmonary vessels,lymphatic vessels,and nerves pass.
B)  is the point of exit of exhaled air.
C)  is the point of entrance for inhaled air.
D)  is an elevated area through which the trachea,pulmonary vessels,and nerves pass.
E)  serves to anchor all pulmonary structures to the mediastinum.F) A) and D)
G) None of the above

Question 19

The alveolar cell that secretes pulmonary surfactant is the

Accepted Answer

A)  alveolar type II cell.
B)  alveolar type I cell.
C)  alveolar macrophages.
D)  dust cells.
E)  squamous alveolar cell.F) A) and D)
G) B) and E)

Question 20

Deoxygenated arterial blood passing through pulmonary capillaries is supplied from the bronchial arteries entering each lung.

Accepted Answer

A) True 
 B)False

Exam 25: Respiratory System

Deoxygenated arterial blood passing through pulmonary capillaries is supplied from the bronchial arteries entering each lung.

Correct AnswerverifiedShow Answer

What prevents the trachea from collapsing?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The alveolar cell that secretes pulmonary surfactant is the

Correct AnswerverifiedShow Answer

-In this close-up image of a lung,what structures are indicated by number 4?

Correct AnswerverifiedShow Answer

Each lung consists of a number of segments called

Correct AnswerverifiedShow Answer

Which center inhibits the activity of the dorsal respiratory group (DRG) ?

Correct AnswerverifiedShow Answer

Where would you find mesothelium?

Correct AnswerverifiedShow Answer

-In these views of the trachea,what type of tissue does number 4 indicate?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

What structures actually produce sound?

Correct AnswerverifiedShow Answer

Approximately how long after birth do alveoli continue to develop?

Correct AnswerverifiedShow Answer

What structure prevents food and drink from entering the trachea,conducts air,and produces sound?

Correct AnswerverifiedShow Answer

Inhaled air is humidified and warmed by the

Correct AnswerverifiedShow Answer

What type of tissue lines the trachea?

Correct AnswerverifiedShow Answer

The bronchial circulation is a component of the pulmonary circulation.

Correct AnswerverifiedShow Answer

The hilum of the lung

Correct AnswerverifiedShow Answer

-In these views of the trachea,what structure does number 1 indicate?

Correct AnswerverifiedShow Answer

Which is not a change associated with the aging of the respiratory system?

Correct AnswerverifiedShow Answer

Which statement is untrue regarding the oropharynx?

Correct AnswerverifiedShow Answer

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