Question 1

The volume of air that enters the lungs during forced maximal inspiration is the

Accepted Answer

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

Question 2

Which of the following factors does not directly affect breathing rate?

Accepted Answer

A)  Partial pressure of oxygen in body fluids. 
B)  Partial pressure of carbon dioxide in body fluids. 
C)  Degree of lung tissue stretch 
D)  pH 
A)  Partial pressure of oxygen in body fluids. 
B)  Partial pressure of carbon dioxide in body fluids. 
C)  Degree of lung tissue stretch 
D)  pH

Question 3

A mother and two young children are found passed out in their apartment, where a space heater is on. Emergency medical technicians suspect carbon monoxide poisoning, so they give the patients

Accepted Answer

A)  nitrogen and carbon dioxide. 
B)  highly concentrated oxygen and some carbon dioxide. 
C)  surfactant. 
D)  blood transfusions. 
A)  nitrogen and carbon dioxide. 
B)  highly concentrated oxygen and some carbon dioxide. 
C)  surfactant. 
D)  blood transfusions.

Question 4

Police stop Richard for driving erratically at 3 AM and give him a breathalyzer test, which he fails miserably because of

Accepted Answer

A)  the thinness of his respiratory membranes. 
B)  the thickness of his respiratory membranes. 
C)  the excellent condition of his alveoli. 
D)  excess surfactant secreted in response to alcohol. 
A)  the thinness of his respiratory membranes. 
B)  the thickness of his respiratory membranes. 
C)  the excellent condition of his alveoli. 
D)  excess surfactant secreted in response to alcohol.

Question 5

Carbon monoxide bonds to hemoglobin more effectively than does oxygen.

Accepted Answer

A) True 
 B)False

Question 6

Hyperventilation is usually accompanied by a(n)

Accepted Answer

A)  decrease in blood CO2 concentration and a drop in pH. 
B)  decrease in blood CO2 concentration and a rise in pH. 
C)  increase in blood CO2 concentration and a drop in pH. 
D)  increase in blood CO2 concentration and a rise in pH. 
A)  decrease in blood CO2 concentration and a drop in pH. 
B)  decrease in blood CO2 concentration and a rise in pH. 
C)  increase in blood CO2 concentration and a drop in pH. 
D)  increase in blood CO2 concentration and a rise in pH.

Question 7

The first event in inspiration is

Accepted Answer

A)  the diaphragm moves downward and the external intercostal muscles contract. 
B)  atmospheric pressure forces air into the respiratory tract. 
C)  decreased intra-alveolar pressure. 
D)  lung inflation. 
A)  the diaphragm moves downward and the external intercostal muscles contract. 
B)  atmospheric pressure forces air into the respiratory tract. 
C)  decreased intra-alveolar pressure. 
D)  lung inflation.

Question 8

The ease with which the lungs can be expanded during breathing is called ______.

Accepted Answer

The answer of The ease with which the lungs can...

Question 9

The cartilaginous structure at the base of the tongue that helps to prevent food and liquid from entering the trachea during swallowing is the ______.

Accepted Answer

The answer of The cartilaginous structure at the base of...

Question 10

The mucous membrane lining the nasal cavity

Accepted Answer

A)  warms incoming air. 
B)  moistens incoming air. 
C)  entraps dust. 
D)  all of the above. 
A)  warms incoming air. 
B)  moistens incoming air. 
C)  entraps dust. 
D)  all of the above.

Question 11

The events of respiration are

Accepted Answer

A)  inhaling and exhaling. 
B)  ventilation, external and internal respiration, and cellular respiration. 
C)  inflating and deflating alveoli. 
D)  delivering carbon dioxide to cells and removing oxygen from cells. 
A)  inhaling and exhaling. 
B)  ventilation, external and internal respiration, and cellular respiration. 
C)  inflating and deflating alveoli. 
D)  delivering carbon dioxide to cells and removing oxygen from cells.

Question 12

The visceral and parietal pleural membranes are normally held together by

Accepted Answer

A)  loose connective tissue. 
B)  dense connective tissue. 
C)  a thin film of serous fluid. 
D)  surfactant. 
A)  loose connective tissue. 
B)  dense connective tissue. 
C)  a thin film of serous fluid. 
D)  surfactant.

Question 13

The amount of oxygen released from oxyhemoglobin increases when

Accepted Answer

A)  carbon dioxide concentration decreases. 
B)  carbon dioxide concentration increases. 
C)  temperature decreases. 
D)  blood becomes more alkaline. 
A)  carbon dioxide concentration decreases. 
B)  carbon dioxide concentration increases. 
C)  temperature decreases. 
D)  blood becomes more alkaline.

Question 14

The chloride shift

Accepted Answer

A)  maintains the ionic balance between the red blood cells and the plasma. 
B)  inflates alveoli while decreasing oxygen delivery to tissues. 
C)  replaces carbonic anhydrase. 
D)  regulates the amount of salt in the large intestine compared to the small intestine. 
A)  maintains the ionic balance between the red blood cells and the plasma. 
B)  inflates alveoli while decreasing oxygen delivery to tissues. 
C)  replaces carbonic anhydrase. 
D)  regulates the amount of salt in the large intestine compared to the small intestine.

Question 15

Respiration is

Accepted Answer

A)  breathing. 
B)  making ATP. 
C)  the entire process of gas exchange between the atmosphere and cells. 
D)  circulating blood to tissues. 
A)  breathing. 
B)  making ATP. 
C)  the entire process of gas exchange between the atmosphere and cells. 
D)  circulating blood to tissues.

Question 16

In a mixture of gases, each gas creates a pressure called its ______ ______.

Accepted Answer

The answer of In a mixture of gases, each gas...

Question 17

The right lung has ______ lobes; the left lung has ______ lobes.

Accepted Answer

A)  superior, middle, and inferior; superior and inferior 
B)  superior and inferior; superior; middle, and inferior 
C)  anterior, posterior, and lateral; superior and inferior 
D)  superior, middle, and inferior; anterior and posterior 
A)  superior, middle, and inferior; superior and inferior 
B)  superior and inferior; superior; middle, and inferior 
C)  anterior, posterior, and lateral; superior and inferior 
D)  superior, middle, and inferior; anterior and posterior

Question 18

Increasing blood concentrations of carbon dioxide and hydrogen ions have similar effects upon the respiratory areas due to

Accepted Answer

A)  their similarity in chemical structure, inhibiting the respiratory rate. 
B)  both chemically bonding, decreasing the respiratory rate. 
C)  an increase in carbon dioxide, increasing hydrogen ions. 
D)  both increasing pH and inhibiting the respiratory areas. 
A)  their similarity in chemical structure, inhibiting the respiratory rate. 
B)  both chemically bonding, decreasing the respiratory rate. 
C)  an increase in carbon dioxide, increasing hydrogen ions. 
D)  both increasing pH and inhibiting the respiratory areas.

Question 19

"I'm going to hold my breath until I turn blue and stop breathing and die and it will be all your fault!" shrieked the 6-year-old at her father. The child was unable to carry out her threat because

Accepted Answer

A)  she never stopped talking long enough to try to hold her breath. 
B)  increased CO2 and hydrogen ion concentration and decreased oxygen concentration stimulate chemoreceptors. 
C)  decreased CO2 and hydrogen ion concentration and increased oxygen concentration stimulate chemoreceptors. 
D)  she could not take in enough oxygen. 
A)  she never stopped talking long enough to try to hold her breath. 
B)  increased CO2 and hydrogen ion concentration and decreased oxygen concentration stimulate chemoreceptors. 
C)  decreased CO2 and hydrogen ion concentration and increased oxygen concentration stimulate chemoreceptors. 
D)  she could not take in enough oxygen.

Question 20

Laryngitis is a potentially dangerous condition because it may

Accepted Answer

A)  obstruct the esophagus. 
B)  obstruct the airway. 
C)  press on the thyroid gland. 
D)  cause inner ear infection. 
A)  obstruct the esophagus. 
B)  obstruct the airway. 
C)  press on the thyroid gland. 
D)  cause inner ear infection.

Exam 19: Respiratory System

The volume of air that enters the lungs during forced maximal inspiration is the

Which of the following factors does not directly affect breathing rate?

A mother and two young children are found passed out in their apartment, where a space heater is on. Emergency medical technicians suspect carbon monoxide poisoning, so they give the patients

Police stop Richard for driving erratically at 3 AM and give him a breathalyzer test, which he fails miserably because of

Carbon monoxide bonds to hemoglobin more effectively than does oxygen.

Hyperventilation is usually accompanied by a(n)

The first event in inspiration is

The ease with which the lungs can be expanded during breathing is called ______.

The cartilaginous structure at the base of the tongue that helps to prevent food and liquid from entering the trachea during swallowing is the ______.

The mucous membrane lining the nasal cavity

The events of respiration are

The visceral and parietal pleural membranes are normally held together by

The amount of oxygen released from oxyhemoglobin increases when

The chloride shift

Respiration is

In a mixture of gases, each gas creates a pressure called its ______ ______.

The right lung has ______ lobes; the left lung has ______ lobes.

Increasing blood concentrations of carbon dioxide and hydrogen ions have similar effects upon the respiratory areas due to

"I'm going to hold my breath until I turn blue and stop breathing and die and it will be all your fault!" shrieked the 6-year-old at her father. The child was unable to carry out her threat because

Laryngitis is a potentially dangerous condition because it may

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

In a mixture of gases, each gas creates a pressure called its .

The right lung has lobes; the left lung has lobes.