Question 1

Surfactants

Accepted Answer

A)  are secreted by cells within the alveoli. 
B)  increase surface tension. 
C)  transport oxygen across the alveolar-pulmonary capillary membrane. 
D)  relax the epiglottis so as prevent upper respiratory obstruction. 
A)  are secreted by cells within the alveoli. 
B)  increase surface tension. 
C)  transport oxygen across the alveolar-pulmonary capillary membrane. 
D)  relax the epiglottis so as prevent upper respiratory obstruction.

Question 2

Which of the following represents a correct anatomical sequence?

Accepted Answer

A)  Larynx, laryngopharynx, trachea 
B)  Oropharynx, laryngopharynx, larynx 
C)  Larynx, pharynx, bronchi 
D)  Voice box, windpipe, alveoli 
A)  Larynx, laryngopharynx, trachea 
B)  Oropharynx, laryngopharynx, larynx 
C)  Larynx, pharynx, bronchi 
D)  Voice box, windpipe, alveoli

Question 3

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 4

Hyperventilation is most apt to induce

Accepted Answer

A)  alkalosis. 
B)  hypoxemia. 
C)  a decline in blood pH. 
D)  metabolic acidosis. 
A)  alkalosis. 
B)  hypoxemia. 
C)  a decline in blood pH. 
D)  metabolic acidosis.

Question 5

The central chemoreceptors are primarily sensitive to blood levels of

Accepted Answer

A)  oxygen. 
B)  carbon dioxide and [H+]. 
C)  sodium. 
D)  potassium. 
A)  oxygen. 
B)  carbon dioxide and [H+]. 
C)  sodium. 
D)  potassium.

Question 6

Which of the following is true of the lower respiratory tract?

Accepted Answer

A)  Contains the respiratory organs in the chest 
B)  Contains all respiratory organs 
C)  Contains all respiratory structures lined with mucous membrane 
D)  Contains all organs distal to the larynx 
A)  Contains the respiratory organs in the chest 
B)  Contains all respiratory organs 
C)  Contains all respiratory structures lined with mucous membrane 
D)  Contains all organs distal to the larynx

Question 7

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 8

The Adam's apple is

Accepted Answer

A)  cartilage. 
B)  the epiglottis. 
C)  the primary site of gas exchange. 
D)  the pharynx. 
A)  cartilage. 
B)  the epiglottis. 
C)  the primary site of gas exchange. 
D)  the pharynx.

Question 9

Which structure is called the windpipe and is supported by rings of cartilage?

Accepted Answer

A)  Bronchus 
B)  Alveolus 
C)  Pharynx 
D)  Trachea 
A)  Bronchus 
B)  Alveolus 
C)  Pharynx 
D)  Trachea

Question 10

Which of the following best describes eupnea?

Accepted Answer

A)  Kussmaul respirations 
B)  Vital capacity 
C)  Normal, quiet breathing 
D)  Hypoxemia 
A)  Kussmaul respirations 
B)  Vital capacity 
C)  Normal, quiet breathing 
D)  Hypoxemia

Question 11

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 12

Which of the following is an upper respiratory structure?

Accepted Answer

A)  Alveoli 
B)  Larynx 
C)  Bronchi 
D)  Bronchioles 
A)  Alveoli 
B)  Larynx 
C)  Bronchi 
D)  Bronchioles

Question 13

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 14

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 15

The phrenic nerve fires.Which event occurs next?

Accepted Answer

A)  The inspiratory neurons fire. 
B)  The diaphragm contracts. 
C)  Air moves into the lungs. 
D)  Thoracic volume decreases. 
A)  The inspiratory neurons fire. 
B)  The diaphragm contracts. 
C)  Air moves into the lungs. 
D)  Thoracic volume decreases.

Question 16

Laryngospasm is most likely to cause

Accepted Answer

A)  emphysema. 
B)  pneumothorax. 
C)  acute respiratory obstruction. 
D)  asthma. 
A)  emphysema. 
B)  pneumothorax. 
C)  acute respiratory obstruction. 
D)  asthma.

Question 17

Which of the following best describes the visceral and parietal pleura?

Accepted Answer

A)  Line the inner wall of the trachea and bronchi 
B)  Line the mediastinum 
C)  Are serous membranes that line the pleural cavity 
D)  Are surfactant-secreting membranes 
A)  Line the inner wall of the trachea and bronchi 
B)  Line the mediastinum 
C)  Are serous membranes that line the pleural cavity 
D)  Are surfactant-secreting membranes

Question 18

In which structure is the PO₂ 104 mm Hg?

Accepted Answer

A)  Pulmonary artery 
B)  Alveolus 
C)  Right ventricle 
D)  Vena cava 
A)  Pulmonary artery 
B)  Alveolus 
C)  Right ventricle 
D)  Vena cava

Question 19

The respiratory passages are lined with

Accepted Answer

A)  pleura. 
B)  mucous membrane. 
C)  serous membrane. 
D)  muscle. 
A)  pleura. 
B)  mucous membrane. 
C)  serous membrane. 
D)  muscle.

Question 20

Which of the following occurs on exhalation?

Accepted Answer

A)  Respiratory expiratory neurons fire. 
B)  The diaphragm relaxes. 
C)  Thoracic volume decreases. 
D)  All of the above occur. 
A)  Respiratory expiratory neurons fire. 
B)  The diaphragm relaxes. 
C)  Thoracic volume decreases. 
D)  All of the above occur.

Exam 22: Respiratory System

Surfactants

Which of the following represents a correct anatomical sequence?

In reference to a normally expanded lung,the

Hyperventilation is most apt to induce

The central chemoreceptors are primarily sensitive to blood levels of

Which of the following is true of the lower respiratory tract?

Hypoventilation can cause

The Adam's apple is

Which structure is called the windpipe and is supported by rings of cartilage?

Which of the following best describes eupnea?

Which respiratory muscles are located between the ribs?

Which of the following is an upper respiratory structure?

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

Which of the following contributes to the wheezing of asthma?

The phrenic nerve fires.Which event occurs next?

Laryngospasm is most likely to cause

Which of the following best describes the visceral and parietal pleura?

In which structure is the PO₂ 104 mm Hg?

The respiratory passages are lined with

Which of the following occurs on exhalation?

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

Functions of the Blood Vessels

Lymphatic System

Immune System

Digestive System

Urinary System

Water, Electrolyte, and Acid-Base Balance

Reproductive Systems

Human Development and Heredity

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