Question 1

The air pressure outside the body is called:

Accepted Answer

A) intrapulmonic pressure 
B) stratospheric pressure 
C) atmospheric pressure 
D) intrapleural pressure 
A) intrapulmonic pressure 
B) stratospheric pressure 
C) atmospheric pressure 
D) intrapleural pressure

Question 2

Which statement is NOT true of the alveoli of the lungs?

Accepted Answer

A) They are surrounded by pulmonary capillaries. 
B) Diffusion of gases takes place across only six layers of cells. 
C) Tissue fluid lining the alveoli permits the diffusion of gases. 
D) Surfactant permits the inflation of alveoli by decreasing their internal surface tension. 
A) They are surrounded by pulmonary capillaries. 
B) Diffusion of gases takes place across only six layers of cells. 
C) Tissue fluid lining the alveoli permits the diffusion of gases. 
D) Surfactant permits the inflation of alveoli by decreasing their internal surface tension.

Question 3

The "work" required for normal breathing is:

Accepted Answer

A) contraction of the respiratory muscles for inhalation 
B) contraction of the respiratory muscles for exhalation 
C) both A and B 
D) neither A nor B because breathing is a reflex 
A) contraction of the respiratory muscles for inhalation 
B) contraction of the respiratory muscles for exhalation 
C) both A and B 
D) neither A nor B because breathing is a reflex

Question 4

Which statement is NOT true of the bronchial tree?

Accepted Answer

A) The trachea branches into the right and left primary bronchi. 
B) The secondary bronchi carry air to the lobes of each lung. 
C) The primary and secondary bronchi are kept open by cartilage. 
D) The bronchioles are kept open by skeletal muscle. 
A) The trachea branches into the right and left primary bronchi. 
B) The secondary bronchi carry air to the lobes of each lung. 
C) The primary and secondary bronchi are kept open by cartilage. 
D) The bronchioles are kept open by skeletal muscle.

Question 5

During swallowing,the nasopharynx is covered by the:

Accepted Answer

A) hard palate 
B) soft palate 
C) glottis 
D) epiglottis 
A) hard palate 
B) soft palate 
C) glottis 
D) epiglottis

Question 6

Which minute respiratory volume is consistent with the potential for respiratory alkalosis?

Accepted Answer

A) 4 L 
B) 5.5 L 
C) 6.5 L 
D) 8 L 
A) 4 L 
B) 5.5 L 
C) 6.5 L 
D) 8 L

Question 7

External respiration is:

Accepted Answer

A) the exchange of gases in the alveoli 
B) the passage of air through the upper respiratory tract 
C) inhalation followed by exhalation 
D) only exhalation 
A) the exchange of gases in the alveoli 
B) the passage of air through the upper respiratory tract 
C) inhalation followed by exhalation 
D) only exhalation

Question 8

If carbon dioxide accumulates in body fluids,the pH of the fluid will:

Accepted Answer

A) decrease 
B) increase 
C) remain the same 
D) increase then decrease 
A) decrease 
B) increase 
C) remain the same 
D) increase then decrease

Question 9

The ciliated epithelium of the nasal mucosa:

Accepted Answer

A) sweeps mucus and pathogens out of the nose 
B) keeps the air moving toward the pharynx 
C) sweeps mucus and pathogens toward the pharynx 
D) prevents dust from entering the nose 
A) sweeps mucus and pathogens out of the nose 
B) keeps the air moving toward the pharynx 
C) sweeps mucus and pathogens toward the pharynx 
D) prevents dust from entering the nose

Question 10

The movement of air to and from the alveoli is called:

Accepted Answer

A) pulmonary respiration 
B) ventilation 
C) cyclic respiration 
D) reflex respiration 
A) pulmonary respiration 
B) ventilation 
C) cyclic respiration 
D) reflex respiration

Question 11

Which statement is NOT true of the pharynx?

Accepted Answer

A) The nasopharynx is a passageway only for air. 
B) The tonsils are lymphatic tissue that destroy pathogens in incoming air or food. 
C) During swallowing,the nasopharynx is covered by the epiglottis. 
D) The laryngopharynx opens into the larynx and the esophagus. 
A) The nasopharynx is a passageway only for air. 
B) The tonsils are lymphatic tissue that destroy pathogens in incoming air or food. 
C) During swallowing,the nasopharynx is covered by the epiglottis. 
D) The laryngopharynx opens into the larynx and the esophagus.

Question 12

During exhalation,the diaphragm:

Accepted Answer

A) contracts and moves downward 
B) contracts and moves upward 
C) relaxes and moves downward 
D) relaxes and moves upward 
A) contracts and moves downward 
B) contracts and moves upward 
C) relaxes and moves downward 
D) relaxes and moves upward

Question 13

The alveoli are made of simple squamous epithelium,which:

Accepted Answer

A) provides a smooth surface 
B) permits diffusion 
C) prevents friction 
D) sweeps pathogens out of the lungs 
A) provides a smooth surface 
B) permits diffusion 
C) prevents friction 
D) sweeps pathogens out of the lungs

Question 14

The tissue of which the alveoli and pulmonary capillaries are made is:

Accepted Answer

A) ciliated epithelium 
B) smooth muscle 
C) simple squamous epithelium 
D) stratified squamous epithelium 
A) ciliated epithelium 
B) smooth muscle 
C) simple squamous epithelium 
D) stratified squamous epithelium

Question 15

In external respiration,carbon dioxide diffuses from the:

Accepted Answer

A) alveoli to the blood 
B) blood to the tissue fluid 
C) blood to the alveoli 
D) tissue fluid to the blood 
A) alveoli to the blood 
B) blood to the tissue fluid 
C) blood to the alveoli 
D) tissue fluid to the blood

Question 16

Which minute respiratory volume is consistent with the potential for respiratory acidosis?

Accepted Answer

A) 4 L 
B) 5.5 L 
C) 6.5 L 
D) 8 L 
A) 4 L 
B) 5.5 L 
C) 6.5 L 
D) 8 L

Question 17

Inflation of the alveoli is made possible by the presence of ___ within the alveoli.

Accepted Answer

A) tissue fluid 
B) plasma 
C) serous fluid 
D) surfactant 
A) tissue fluid 
B) plasma 
C) serous fluid 
D) surfactant

Question 18

The function of the epiglottis is to:

Accepted Answer

A) cover the oropharynx during breathing 
B) keep the larynx open during breathing 
C) cover the oropharynx during swallowing 
D) cover the larynx during swallowing 
A) cover the oropharynx during breathing 
B) keep the larynx open during breathing 
C) cover the oropharynx during swallowing 
D) cover the larynx during swallowing

Question 19

Which statement is NOT true of respiratory volumes?

Accepted Answer

A) They vary with the age and height of a person. 
B) Residual air is the air we cannot exhale. 
C) Vital capacity is the volume of the deepest inhalation. 
D) Tidal volume is considered a normal breath. 
A) They vary with the age and height of a person. 
B) Residual air is the air we cannot exhale. 
C) Vital capacity is the volume of the deepest inhalation. 
D) Tidal volume is considered a normal breath.

Question 20

Hemoglobin will release oxygen where the:

Accepted Answer

A) PO2 is low 
B) PCO2 is low 
C) temperature is low 
D) all of these 
A) PO2 is low 
B) PCO2 is low 
C) temperature is low 
D) all of these

Exam 16:The Respiratory System-Part C

The air pressure outside the body is called:

Which statement is NOT true of the alveoli of the lungs?

The "work" required for normal breathing is:

Which statement is NOT true of the bronchial tree?

During swallowing,the nasopharynx is covered by the:

Which minute respiratory volume is consistent with the potential for respiratory alkalosis?

External respiration is:

If carbon dioxide accumulates in body fluids,the pH of the fluid will:

The ciliated epithelium of the nasal mucosa:

The movement of air to and from the alveoli is called:

Which statement is NOT true of the pharynx?

During exhalation,the diaphragm:

The alveoli are made of simple squamous epithelium,which:

The tissue of which the alveoli and pulmonary capillaries are made is:

In external respiration,carbon dioxide diffuses from the:

Which minute respiratory volume is consistent with the potential for respiratory acidosis?

Inflation of the alveoli is made possible by the presence of ___ within the alveoli.

The function of the epiglottis is to:

Which statement is NOT true of respiratory volumes?

Hemoglobin will release oxygen where the:

Organization and General Plan of the Body-Part A

Organization and General Plan of the Body-Part B

Organization and General Plan of the Body-Part C

Some Basic Chemistry-Part A

Some Basic Chemistry-Part B

Some Basic Chemistry-Part C

Cells-Part A

Cells-Part B

Cells-Part C

Tissues and Membranes-Part A

Tissues and Membranes-Part B

Tissues and Membranes-Part C

The Integumentary System-Part A

The Integumentary System-Part B

The Integumentary System-Part C

The Skeletal System-Part A

The Skeletal System-Part B

The Skeletal System-Part C

The Muscular System-Part A

The Muscular System-Part B

The Muscular System-Part C

The Nervous System-Part A

The Nervous System-Part B

The Nervous System-Part C

The Senses-Part A

The Senses-Part B

The Senses-Part C

The Endocrine System-Part A

The Endocrine System-Part B

The Endocrine System-Part C

Blood-Part A

Blood-Part B

Blood-Part C

The Heart-Part A

The Heart-Part B

The Heart-Part C

The Vascular System-Part A

The Vascular System-Part B

The Vascular System-Part C

The Lymphatic System and Immunity-Part A

The Lymphatic System and Immunity-Part B

The Lymphatic System and Immunity-Part C

The Respiratory System-Part A

The Respiratory System-Part B

The Digestive System-Part A

The Digestive System-Part B

The Digestive System-Part C

Body Temperature and Metabolism-Part A

Body Temperature and Metabolism-Part B

Body Temperature and Metabolism-Part C

The Urinary System-Part A

The Urinary System-Part B

The Urinary System-Part C

Fluid–Electrolyte and Acid–Base Balance-Part A

Fluid–Electrolyte and Acid–Base Balance-Part B

Fluid–Electrolyte and Acid–Base Balance-Part C

The Reproductive Systems-Part A

The Reproductive Systems-Part B

The Reproductive Systems-Part C