Question 1

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

Question 2

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. 
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.

Question 3

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 → alveoli 
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 → alveoli

Question 4

Food is prevented from entering the trachea by the

Accepted Answer

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

Question 5

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. 
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.

Question 6

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 pressure 
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 pressure

Question 7

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

Accepted Answer

A)  bronchi 
B)  alveolus 
C)  larynx 
D)  pharynx 
E)  bronchioles 
A)  bronchi 
B)  alveolus 
C)  larynx 
D)  pharynx 
E)  bronchioles

Question 8

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

Question 9

An infection with Mycobacterium can cause tubercles in the lungs.

Accepted Answer

A) True 
 B)False

Question 10

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

Question 11

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. 
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.

Question 12

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)  air 
A)  rings of cartilage 
B)  surfactant 
C)  smooth muscle 
D)  mucus 
E)  air

Question 13

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 fibrosis 
A)  emphysema 
B)  pneumonia 
C)  rheumatic fever 
D)  tuberculosis 
E)  pulmonary fibrosis

Question 14

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

Accepted Answer

A)  Yes 
B)  No 
A)  Yes 
B)  No

Question 15

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)  alveoli 
A)  pharynx 
B)  larynx 
C)  trachea 
D)  bronchioles 
E)  alveoli

Question 16

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

Question 17

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

Question 18

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 → larynx 
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 → larynx

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 15: Respiratory System

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

In humans, the lungs inflate when the

Trace the path of an inhaled air molecule.

Food is prevented from entering the trachea by the

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

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

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

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

An infection with Mycobacterium can cause tubercles in the lungs.

A lung disease caused by bacteria that become encapsulated is called

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

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

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

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

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

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

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

By what route does CO2 leave the body?

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

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

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By what route does CO₂ leave the body?