Question 1

The elastic structure that folds back over the glottis, preventing the entry of liquids or solid food into the respiratory tract during swallowing, is the

Accepted Answer

A)  thyroid cartilage. 
B)  glottis. 
C)  corniculate cartilage. 
D)  cuneiform cartilage. 
E)  epiglottis. 
A)  thyroid cartilage. 
B)  glottis. 
C)  corniculate cartilage. 
D)  cuneiform cartilage. 
E)  epiglottis.

Question 2

Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their

Accepted Answer

A)  endothelial cells of the alveolar capillaries. 
B)  septal cells of the alveolar ducts. 
C)  squamous epithelial cells of the alveoli. 
D)  alveolar macrophages within the alveolar sacs. 
E)  type II pneumocytes lining the respiratory bronchioles. 
A)  endothelial cells of the alveolar capillaries. 
B)  septal cells of the alveolar ducts. 
C)  squamous epithelial cells of the alveoli. 
D)  alveolar macrophages within the alveolar sacs. 
E)  type II pneumocytes lining the respiratory bronchioles.

Question 3

Sympathetic activation leads to

Accepted Answer

A)  relaxation in skeletal muscle of bronchioles, causing bronchodilation. 
B)  contraction of smooth muscles of bronchioles, causing bronchoconstriction. 
C)  relaxation in smooth muscles of bronchioles, causing bronchodilation. 
D)  relaxation of smooth muscles of bronchioles, resulting in bronchoconstriction. 
E)  contraction of smooth muscles of bronchioles, causing bronchodilation. 
A)  relaxation in skeletal muscle of bronchioles, causing bronchodilation. 
B)  contraction of smooth muscles of bronchioles, causing bronchoconstriction. 
C)  relaxation in smooth muscles of bronchioles, causing bronchodilation. 
D)  relaxation of smooth muscles of bronchioles, resulting in bronchoconstriction. 
E)  contraction of smooth muscles of bronchioles, causing bronchodilation.

Question 4

Receptors in the medulla oblongata respond to which variables?

Accepted Answer

A)  pH and PCO2 in CSF 
B)  pH and PCO2 in blood 
C)  PO2 and pH in blood 
D)  pH and PO2 in CSF 
E)  pH and PN2 in CSF 
A)  pH and PCO2 in CSF 
B)  pH and PCO2 in blood 
C)  PO2 and pH in blood 
D)  pH and PO2 in CSF 
E)  pH and PN2 in CSF

Question 5

When the chest cavity has been penetrated, as in a pneumothorax, the amount of air in the respiratory system is reduced to the

Accepted Answer

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

Question 6

The trachea

Accepted Answer

A)  is lined by dense regular connective tissue. 
B)  is reinforced with C-shaped cartilages. 
C)  contains the vocal cords. 
D)  always maintains the same diameter. 
E)  ends distally at the level of the diaphragm. 
A)  is lined by dense regular connective tissue. 
B)  is reinforced with C-shaped cartilages. 
C)  contains the vocal cords. 
D)  always maintains the same diameter. 
E)  ends distally at the level of the diaphragm.

Question 7

The respiratory rate is

Accepted Answer

A)  higher in adults than in children. 
B)  roughly 20-30 breaths per minute for toddlers. 
C)  the movement of about 500 ml of air per breath at rest. 
D)  the number of breaths per hour. 
E)  needed to calculate residual volume. 
A)  higher in adults than in children. 
B)  roughly 20-30 breaths per minute for toddlers. 
C)  the movement of about 500 ml of air per breath at rest. 
D)  the number of breaths per hour. 
E)  needed to calculate residual volume.

Question 8

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label G represents which structure(s)?

Accepted Answer

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

Question 9

The respiratory mucosa is made up of

Accepted Answer

A)  dense irregular connective tissue. 
B)  squamous epithelium. 
C)  ciliated cuboidal epithelium. 
D)  ciliated columnar epithelium. 
E)  dense regular connective tissue. 
A)  dense irregular connective tissue. 
B)  squamous epithelium. 
C)  ciliated cuboidal epithelium. 
D)  ciliated columnar epithelium. 
E)  dense regular connective tissue.

Question 10

Surfactant

Accepted Answer

A)  is produced by pneumocytes type I. 
B)  phagocytizes dust or debris. 
C)  replaces mucus in the alveoli. 
D)  plays a key role in keeping alveoli open. 
E)  is not found in healthy lung tissue. 
A)  is produced by pneumocytes type I. 
B)  phagocytizes dust or debris. 
C)  replaces mucus in the alveoli. 
D)  plays a key role in keeping alveoli open. 
E)  is not found in healthy lung tissue.

Question 11

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label C represents which structure(s)?

Accepted Answer

A)  nose 
B)  nasal cavity 
C)  pharynx 
D)  sinuses 
E)  larynx 
A)  nose 
B)  nasal cavity 
C)  pharynx 
D)  sinuses 
E)  larynx

Question 12

Figure 15-1 Components of the Respiratory System
Use Figure 15-1 to identify the labeled part.
-Label H represents which structure(s)?

Accepted Answer

A)  bronchus 
B)  larynx 
C)  esophagus 
D)  trachea 
E)  pharynx 
A)  bronchus 
B)  larynx 
C)  esophagus 
D)  trachea 
E)  pharynx

Question 13

The alveolar exchange surfaces of the lungs are approximately

Accepted Answer

A)  75 square kilometers. 
B)  140 square meters. 
C)  1400 square centimeters. 
D)  7 square kilometers. 
E)  14 square meters. 
A)  75 square kilometers. 
B)  140 square meters. 
C)  1400 square centimeters. 
D)  7 square kilometers. 
E)  14 square meters.

Question 14

Harry suffers from cystic fibrosis and frequently has periods where he can hardly breathe. The problem is most likely the result of

Accepted Answer

A)  inflammation of the bronchi. 
B)  constriction of the trachea. 
C)  thick secretions that exceed the ability of the respiratory tract cilia to remove them. 
D)  laryngeal spasms that occur in response to a toxic substance produced by the epithelial cells. 
E)  collapse of one or both lungs. 
A)  inflammation of the bronchi. 
B)  constriction of the trachea. 
C)  thick secretions that exceed the ability of the respiratory tract cilia to remove them. 
D)  laryngeal spasms that occur in response to a toxic substance produced by the epithelial cells. 
E)  collapse of one or both lungs.

Question 15

The actual sites of gas exchange within the lungs include

Accepted Answer

A)  bronchioles. 
B)  alveolar ducts. 
C)  pleural spaces. 
D)  alveoli. 
E)  capillary beds. 
A)  bronchioles. 
B)  alveolar ducts. 
C)  pleural spaces. 
D)  alveoli. 
E)  capillary beds.

Question 16

The inspiratory reserve volume (IRV) of males averages

Accepted Answer

A)  500 ml. 
B)  1200 ml. 
C)  1900 ml. 
D)  3300 ml. 
E)  5500 ml. 
A)  500 ml. 
B)  1200 ml. 
C)  1900 ml. 
D)  3300 ml. 
E)  5500 ml.

Question 17

When at rest, the amount of air that enters and leaves the lungs in a normal respiratory cycle is the

Accepted Answer

A)  total lung capacity. 
B)  vital capacity. 
C)  tidal volume. 
D)  residual volume. 
E)  inspiratory volume. 
A)  total lung capacity. 
B)  vital capacity. 
C)  tidal volume. 
D)  residual volume. 
E)  inspiratory volume.

Question 18

Fever, coughing, chest pain, fatigue, and weight loss are signs and symptoms of

Accepted Answer

A)  pneumonia. 
B)  cystic fibrosis. 
C)  emphysema. 
D)  tuberculosis. 
E)  pleurisy. 
A)  pneumonia. 
B)  cystic fibrosis. 
C)  emphysema. 
D)  tuberculosis. 
E)  pleurisy.

Question 19

During the winter, Brad sleeps in a dorm room that lacks a humidifier for the heated air. In the mornings he notices that his nose is "stuffy," similar to when he has a cold, but after showering and drinking some water, the stuffiness disappears until the next morning. What might be the cause of Brad's nasal condition?

Accepted Answer

Since the air that Brad is breathing is

Question 20

Air entering the body is filtered, warmed, and humidified by the

Accepted Answer

A)  upper (conducting) portion of the respiratory tract. 
B)  lower (respiratory) portion of the respiratory tract. 
C)  lungs. 
D)  alveoli. 
E)  bronchioles. 
A)  upper (conducting) portion of the respiratory tract. 
B)  lower (respiratory) portion of the respiratory tract. 
C)  lungs. 
D)  alveoli. 
E)  bronchioles.

The elastic structure that folds back over the glottis, preventing the entry of liquids or solid food into the respiratory tract during swallowing, is the

Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their

Sympathetic activation leads to

Receptors in the medulla oblongata respond to which variables?

When the chest cavity has been penetrated, as in a pneumothorax, the amount of air in the respiratory system is reduced to the

The trachea

The respiratory rate is

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label G represents which structure(s)?

The respiratory mucosa is made up of

Surfactant

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label C represents which structure(s)?

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label H represents which structure(s)?

The alveolar exchange surfaces of the lungs are approximately

Harry suffers from cystic fibrosis and frequently has periods where he can hardly breathe. The problem is most likely the result of

The actual sites of gas exchange within the lungs include

The inspiratory reserve volume (IRV) of males averages

When at rest, the amount of air that enters and leaves the lungs in a normal respiratory cycle is the

Fever, coughing, chest pain, fatigue, and weight loss are signs and symptoms of

Air entering the body is filtered, warmed, and humidified by the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Digestive System

Metabolism and Energetics

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Exam 15: The Respiratory System

The elastic structure that folds back over the glottis, preventing the entry of liquids or solid food into the respiratory tract during swallowing, is the

Someone suffering from a lack of angiotensin-converting enzyme may have a problem with their

Sympathetic activation leads to

Receptors in the medulla oblongata respond to which variables?

When the chest cavity has been penetrated, as in a pneumothorax, the amount of air in the respiratory system is reduced to the

The trachea

The respiratory rate is

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label G represents which structure(s)?

The respiratory mucosa is made up of

Surfactant

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label C represents which structure(s)?

Figure 15-1 Components of the Respiratory System Use Figure 15-1 to identify the labeled part. -Label H represents which structure(s)?

The alveolar exchange surfaces of the lungs are approximately

Harry suffers from cystic fibrosis and frequently has periods where he can hardly breathe. The problem is most likely the result of

The actual sites of gas exchange within the lungs include

The inspiratory reserve volume (IRV) of males averages

When at rest, the amount of air that enters and leaves the lungs in a normal respiratory cycle is the

Fever, coughing, chest pain, fatigue, and weight loss are signs and symptoms of

Air entering the body is filtered, warmed, and humidified by the

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

Cell Structure and Function

The Tissue Level of Organization

The Integumentary System

The Skeletal System

The Muscular System

The Nervous System

The General and Special Senses

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Digestive System

Metabolism and Energetics

The Urinary System

The Reproductive System

Development and Inheritance

Filters