Question 1

By what route does CO2 leave the body?

Accepted Answer

A)   pulmonary artery → alveolus → bronchus → bronchiole → trachea → pharynx → larynx
B)   pulmonary vein → bronchiole → alveolus → bronchus → trachea → pharynx → larynx
C)   pulmonary artery → alveolus → bronchiole → bronchus → trachea → larynx → pharynx
D)   pulmonary vein → alveolus → bronchus → bronchiole → trachea → larynx → pharynx
E)   pulmonary artery → alveolus → bronchiole → bronchus → trachea → pharynx → larynxF) A) and E)
G) C) and D)

Question 2

Which of the following statements is true regarding the normal mechanism of ventilation?

Accepted Answer

A)   There must be a continuous column of air from the pharynx to the alveoli.
B)   The lungs must lie within a sealed-off thoracic cavity.
C)   The inner and outer pleural membranes must be separated by a thin film of fluid.
D)   The diaphragm, when contracted, will be lowered.
E)   All of the answer choices are true.F) None of the above
G) B) and E)

Question 3

A lung disease caused by bacteria that become encapsulated is called

Accepted Answer

A)   emphysema.
B)   pneumonia.
C)   rheumatic fever.
D)   tuberculosis.
E)   pulmonary fibrosis.F) B) and D)
G) A) and D)

Question 4

Food is prevented from entering the trachea by the

Accepted Answer

A)   pharynx.
B)   larynx.
C)   bronchioles.
D)   saliva.
E)   epiglottis.F) B) and D)
G) C) and D)

Question 5

What keeps the alveoli open so that gas exchange can take place?

Accepted Answer

A)   rings of cartilage
B)   surfactant
C)   smooth muscle
D)   mucus
E)   airF) A) and B)
G) D) and E)

Question 6

An infection with Mycobacterium can cause tubercles in the lungs.

Accepted Answer

A) True 
 B)False

Question 7

The symptoms of laryngitis include a severe sore throat, high fever, and white patches on the throat.

Accepted Answer

A) True 
 B)False

Question 8

If a person has chronic bronchitis, will they cough up mucus?

Accepted Answer

A)   Yes
B)   NoC) A) and B)
D) undefined

Question 9

The maximum volume of air that can be moved in plus the maximum volume of air that can be moved out during a single breath is the

Accepted Answer

A)   tidal volume.
B)   inspiratory reserve volume.
C)   expiratory reserve volume.
D)   vital capacity.
E)   residual volume.F) A) and D)
G) A) and E)

Question 10

Which part of the respiratory system is composed of C-shaped cartilaginous rings and cilia?

Accepted Answer

A)   pharynx
B)   larynx
C)   trachea
D)   bronchioles
E)   alveoliF) C) and D)
G) A) and C)

Question 11

Which of the following symptoms would not be typical of otitis media?

Accepted Answer

A)   pain
B)   sense of fullness in the ear
C)   hearing loss
D)   headache
E)   dizzinessF) D) and E)
G) A) and E)

Question 12

Why does the surface of the lungs need to be covered with pleura?

Accepted Answer

A)   to allow the exchange of oxygen within the alveoli
B)   to allow the exchange of carbon dioxide within the alveoli
C)   to produce the muscular contractions that expand the lungs
D)   to enable the lungs to slide past the internal chest wall and diaphragm
E)   to prevent the alveoli from collapsing due to pressureF) C) and D)
G) B) and C)

Question 13

After the trachea, what is the next structure that air passes through?

Accepted Answer

A)   bronchi
B)   alveolus
C)   larynx
D)   pharynx
E)   bronchiolesF) B) and C)
G) B) and D)

Question 14

The highest carbon dioxide concentration will be found in (or at)  the

Accepted Answer

A)   atmosphere.
B)   trachea.
C)   alveoli.
D)   tissue cells.
E)   blood.F) C) and D)
G) B) and E)

Question 15

When we are relaxed, only a small amount of air moves in and out with each breath. This is called

Accepted Answer

A)   static volume.
B)   tidal volume.
C)   inspiratory reserve volume.
D)   expiratory reserve volume.
E)   residual volume.F) B) and C)
G) C) and D)

Question 16

Blood in the pulmonary capillaries has a higher partial pressure of carbon dioxide than atmospheric air.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following diseases is caused by exposure to particles inhaled primarily in the workplace (silica, coal dust, etc.) ?

Accepted Answer

A)   emphysema
B)   pneumonia
C)   rheumatic fever
D)   tuberculosis
E)   pulmonary fibrosisF) C) and E)
G) A) and E)

Question 18

Which of the following is a major function of the respiratory tract?

Accepted Answer

A)   warming incoming air before it reaches the lungs
B)   moistening incoming air
C)   filtering out dust and water particles
D)   conducting air with higher O2 to lungs and conducting air with higher CO2 back out
E)   All of the answer choices describe functions of the respiratory system.F) A) and B)
G) A) and C)

Question 19

In humans, the lungs inflate when the

Accepted Answer

A)   rib muscles contract.
B)   diaphragm muscle contracts.
C)   external intercostal rib muscles and diaphragm contract.
D)   diaphragm relaxes.
E)   rib muscles and diaphragm relax.F) D) and E)
G) C) and E)

Question 20

Trace the path of an inhaled air molecule.

Accepted Answer

A)   nasal cavity → glottis → larynx → trachea → pharynx → bronchi → bronchioles → alveoli
B)   nasal cavity → pharynx → larynx → glottis → trachea → bronchi → bronchioles → alveoli
C)   nasal cavity → pharynx → glottis → larynx → trachea → bronchi → bronchioles → alveoli
D)   nasal cavity → pharynx → glottis → larynx → trachea → bronchioles → bronchi → alveoli
E)   nasal cavity → pharynx → glottis → trachea → larynx → bronchi → bronchioles → alveoliF) A) and B)
G) C) and D)

Exam 15: Respiratory System

Blood in the pulmonary capillaries has a higher partial pressure of carbon dioxide than atmospheric air.

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What keeps the alveoli open so that gas exchange can take place?

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Which of the following is a major function of the respiratory tract?

Correct AnswerverifiedShow Answer

Food is prevented from entering the trachea by the

Correct AnswerverifiedShow Answer

By what route does CO2 leave the body?

Correct AnswerverifiedShow Answer

In humans, the lungs inflate when the

Correct AnswerverifiedShow Answer

The symptoms of laryngitis include a severe sore throat, high fever, and white patches on the throat.

Correct AnswerverifiedShow Answer

Which of the following statements is true regarding the normal mechanism of ventilation?

Correct AnswerverifiedShow Answer

Why does the surface of the lungs need to be covered with pleura?

Correct AnswerverifiedShow Answer

An infection with Mycobacterium can cause tubercles in the lungs.

Correct AnswerverifiedShow Answer

Which part of the respiratory system is composed of C-shaped cartilaginous rings and cilia?

Correct AnswerverifiedShow Answer

After the trachea, what is the next structure that air passes through?

Correct AnswerverifiedShow Answer

When we are relaxed, only a small amount of air moves in and out with each breath. This is called

Correct AnswerverifiedShow Answer

Which of the following diseases is caused by exposure to particles inhaled primarily in the workplace (silica, coal dust, etc.) ?

Correct AnswerverifiedShow Answer

The maximum volume of air that can be moved in plus the maximum volume of air that can be moved out during a single breath is the

Correct AnswerverifiedShow Answer

Trace the path of an inhaled air molecule.

Correct AnswerverifiedShow Answer

The highest carbon dioxide concentration will be found in (or at) the

Correct AnswerverifiedShow Answer

A lung disease caused by bacteria that become encapsulated is called

Correct AnswerverifiedShow Answer

If a person has chronic bronchitis, will they cough up mucus?

Correct AnswerverifiedShow Answer

Which of the following symptoms would not be typical of otitis media?

Correct AnswerverifiedShow Answer

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By what route does CO₂ leave the body?

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