Question 1

Anatomical dead air space is most associated with which structure?

Accepted Answer

A) Frontal sinus 
B) Alveoli 
C) Trachea 
D) Esophagus 
A) Frontal sinus 
B) Alveoli 
C) Trachea 
D) Esophagus

Question 2

Severing the phrenic nerve

Accepted Answer

A) stops ventilation. 
B) impairs exhalation but has no effect on inhalation. 
C) causes hyperventilation and respiratory alkalosis. 
D) does all of the above. 
A) stops ventilation. 
B) impairs exhalation but has no effect on inhalation. 
C) causes hyperventilation and respiratory alkalosis. 
D) does all of the above.

Question 3

The alveoli

Accepted Answer

A) are supported by C-shaped cartilaginous rings. 
B) are the primary site of respiratory gas exchange. 
C) contract and relax,thereby determining resistance to air flow through the respiratory passages. 
D) are composed primarily of smooth muscle. 
A) are supported by C-shaped cartilaginous rings. 
B) are the primary site of respiratory gas exchange. 
C) contract and relax,thereby determining resistance to air flow through the respiratory passages. 
D) are composed primarily of smooth muscle.

Question 4

Hypoventilation can cause

Accepted Answer

A) bleeding and hypotension. 
B) alkalosis and Kussmaul respirations. 
C) hypoxemia and acidosis. 
D) hyperglycemia and acidosis. 
A) bleeding and hypotension. 
B) alkalosis and Kussmaul respirations. 
C) hypoxemia and acidosis. 
D) hyperglycemia and acidosis.

Question 5

Identify the names of the following: voicebox,throat,and windpipe.

Accepted Answer

A) Larynx,vocal cords,trachea 
B) Larynx,laryngopharynx,bronchi 
C) Larynx,pharynx,trachea 
D) Laryngopharynx,pharynx,alveoli 
A) Larynx,vocal cords,trachea 
B) Larynx,laryngopharynx,bronchi 
C) Larynx,pharynx,trachea 
D) Laryngopharynx,pharynx,alveoli

Question 6

The lungs are located within the

Accepted Answer

A) mediastinum. 
B) dorsal cavity. 
C) spinal cavity. 
D) thoracic cavity. 
A) mediastinum. 
B) dorsal cavity. 
C) spinal cavity. 
D) thoracic cavity.

Question 7

What is the primary concern with laryngospasm and swelling of the lips and tongue?

Accepted Answer

A) Interruption of the negative pressure within the intrapleural space 
B) Indication of accumulation of water in the alveoli as in pulmonary edema 
C) Acute upper airway obstruction 
D) Indication of damage of the phrenic nerve 
A) Interruption of the negative pressure within the intrapleural space 
B) Indication of accumulation of water in the alveoli as in pulmonary edema 
C) Acute upper airway obstruction 
D) Indication of damage of the phrenic nerve

Question 8

Which of the following is most related to the transport of the respiratory gases by the blood?

Accepted Answer

A) Inhalation,exhalation 
B) Oxyhemoglobin,carbaminohemoglobin 
C) Inspiration,expiration 
D) Breathing in,breathing out 
A) Inhalation,exhalation 
B) Oxyhemoglobin,carbaminohemoglobin 
C) Inspiration,expiration 
D) Breathing in,breathing out

Question 9

In reference to a normally expanded lung,the

Accepted Answer

A) intrapulmonic pressure is less than intrapleural pressure. 
B) intrapleural pressure is greater than atmospheric pressure. 
C) intrapulmonic pressure is greater than intrapleural pressure. 
D) intrapleural,intrapulmonic,and atmospheric pressures are equal. 
A) intrapulmonic pressure is less than intrapleural pressure. 
B) intrapleural pressure is greater than atmospheric pressure. 
C) intrapulmonic pressure is greater than intrapleural pressure. 
D) intrapleural,intrapulmonic,and atmospheric pressures are equal.

Question 10

Which of the following structures prevents entrance of food and water into the respiratory passages?

Accepted Answer

A) Larynx 
B) Glottis 
C) Epiglottis 
D) Thyroid cartilage 
A) Larynx 
B) Glottis 
C) Epiglottis 
D) Thyroid cartilage

Question 11

Surfactants are found within the

Accepted Answer

A) pulmonary capillaries. 
B) trachea. 
C) alveoli. 
D) intrapleural space. 
A) pulmonary capillaries. 
B) trachea. 
C) alveoli. 
D) intrapleural space.

Question 12

Which respiratory muscles are located between the ribs?

Accepted Answer

A) Diaphragm 
B) Bronchiolar smooth muscle 
C) Intercostals 
D) Sternocleidomastoids 
A) Diaphragm 
B) Bronchiolar smooth muscle 
C) Intercostals 
D) Sternocleidomastoids

Question 13

Which of the following respiratory tubes are primarily composed of smooth muscle and determine the flow of air to the alveoli?

Accepted Answer

A) Trachea 
B) Bronchi 
C) Bronchioles 
D) Nares 
A) Trachea 
B) Bronchi 
C) Bronchioles 
D) Nares

Question 14

Boyle's law states the relationship between volume and

Accepted Answer

A) O₂. 
B) CO₂. 
C) pressure. 
D) H₂O. 
A) O₂. 
B) CO₂. 
C) pressure. 
D) H₂O.

Question 15

Where is blood oxygenated?

Accepted Answer

A) Within the left ventricle 
B) Within the left anterior descending artery 
C) Within the coronary sinus 
D) Across the alveolus/pulmonary capillary membrane 
A) Within the left ventricle 
B) Within the left anterior descending artery 
C) Within the coronary sinus 
D) Across the alveolus/pulmonary capillary membrane

Question 16

Which of the following statements is true of the right bronchus?

Accepted Answer

A) Food and small objects are more likely to be aspirated into the right bronchus because it is more vertical and larger than the left bronchus. 
B) The right bronchus has an opening to the pleural cavity. 
C) Oxygen content is higher in the right bronchus than the left bronchus. 
D) The right bronchus is bigger than the left bronchus,so it has higher levels of carbon dioxide. 
A) Food and small objects are more likely to be aspirated into the right bronchus because it is more vertical and larger than the left bronchus. 
B) The right bronchus has an opening to the pleural cavity. 
C) Oxygen content is higher in the right bronchus than the left bronchus. 
D) The right bronchus is bigger than the left bronchus,so it has higher levels of carbon dioxide.

Question 17

Ventilation

Accepted Answer

A) refers to the regulation of blood pH by the lungs. 
B) refers to loading and unloading of oxygen by hemoglobin. 
C) has two phases: inhalation and exhalation. 
D) is exclusively responsive to pCO₂. 
A) refers to the regulation of blood pH by the lungs. 
B) refers to loading and unloading of oxygen by hemoglobin. 
C) has two phases: inhalation and exhalation. 
D) is exclusively responsive to pCO₂.

Question 18

Which of the following structures is located both in the thoracic cavity and mediastinum but not in the pleural cavities?

Accepted Answer

A) Lungs 
B) Heart 
C) Alveoli 
D) Bronchioles 
A) Lungs 
B) Heart 
C) Alveoli 
D) Bronchioles

Question 19

Which of the following contributes to the wheezing of asthma?

Accepted Answer

A) Constriction of the bronchiolar smooth muscle 
B) Edema of the esophagus 
C) Inflammation of the trachea and pharynx 
D) Pneumothorax 
A) Constriction of the bronchiolar smooth muscle 
B) Edema of the esophagus 
C) Inflammation of the trachea and pharynx 
D) Pneumothorax

Question 20

Which of the following events occurs last?

Accepted Answer

A) Contraction of the diaphragm and the intercostals 
B) Movement of air into the lungs 
C) Firing of the inspiratory neurons in the medulla 
D) Firing of the phrenic and intercostal nerves 
A) Contraction of the diaphragm and the intercostals 
B) Movement of air into the lungs 
C) Firing of the inspiratory neurons in the medulla 
D) Firing of the phrenic and intercostal nerves

Exam 22: Respiratory System

Anatomical dead air space is most associated with which structure?

Severing the phrenic nerve

The alveoli

Hypoventilation can cause

Identify the names of the following: voicebox,throat,and windpipe.

The lungs are located within the

What is the primary concern with laryngospasm and swelling of the lips and tongue?

Which of the following is most related to the transport of the respiratory gases by the blood?

In reference to a normally expanded lung,the

Which of the following structures prevents entrance of food and water into the respiratory passages?

Surfactants are found within the

Which respiratory muscles are located between the ribs?

Which of the following respiratory tubes are primarily composed of smooth muscle and determine the flow of air to the alveoli?

Boyle's law states the relationship between volume and

Where is blood oxygenated?

Which of the following statements is true of the right bronchus?

Ventilation

Which of the following structures is located both in the thoracic cavity and mediastinum but not in the pleural cavities?

Which of the following contributes to the wheezing of asthma?

Which of the following events occurs last?

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Functions of the Blood Vessels

Lymphatic System

Immune System

Digestive System

Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Human Development and Heredity

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