Question 1

All of the following are normal changes that occur in the respiratory system during exercise EXCEPT

Accepted Answer

A) blood flow to the lungs increases. 
B) oxygen diffusion rate across the respiratory membrane increases. 
C) less carbon dioxide is produced in the muscles. 
D) breathing rate increases. 
E) depth of ventilation increases. 
A) blood flow to the lungs increases. 
B) oxygen diffusion rate across the respiratory membrane increases. 
C) less carbon dioxide is produced in the muscles. 
D) breathing rate increases. 
E) depth of ventilation increases. C

Question 2

The right lung is smaller than the left lung because of the position of the heart.

Accepted Answer

A) True 
 B)False  False

Question 3

The right lung is divided into three lobes by two deep surface fissures called the horizontal and oblique fissures.

Accepted Answer

A) True 
 B)False  True

Question 4

The total pressure of a gas mixture is calculated by multiplying the partial pressures of all the gases in the mixture.

Accepted Answer

A) True 
 B)False

Question 5

The parietal pleura lines the thoracic cavity and diaphragm, while the visceral pleura covers the outer surface of the lungs.

Accepted Answer

A) True 
 B)False

Question 6

Describe the major functions of the nasal cavity.

Accepted Answer

1)Warm, moisten, and filter in

Question 7

Cartilaginous rings

Accepted Answer

A) make the trachea rigid to keep the airway open. 
B) make the primary bronchi rigid to keep them open. 
C) are C shaped in the trachea to allow the esophagus to expand behind it. 
D) are made of hyaline cartilage. 
E) all of the choices are correct. 
A) make the trachea rigid to keep the airway open. 
B) make the primary bronchi rigid to keep them open. 
C) are C shaped in the trachea to allow the esophagus to expand behind it. 
D) are made of hyaline cartilage. 
E) all of the choices are correct.

Question 8

The volume of air in one normal breath is called the

Accepted Answer

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

Question 9

Bicarbonate ions are produced by combining carbon dioxide with water to form carbonic acid, which then dissociates to form bicarbonate and hydrogen ions.

Accepted Answer

A) True 
 B)False

Question 10

The human lungs contain about _____ alveoli.

Accepted Answer

A) 10,000 
B) 300,000 
C) one million 
D) 300 million 
E) 1 billion 
A) 10,000 
B) 300,000 
C) one million 
D) 300 million 
E) 1 billion

Question 11

The true vocal cords are located in the

Accepted Answer

A) esophagus 
B) trachea 
C) larynx 
D) nasopharynx 
E) laryngopharynx 
A) esophagus 
B) trachea 
C) larynx 
D) nasopharynx 
E) laryngopharynx

Question 12

Carbon monoxide is a colorless and odorless gas that

Accepted Answer

A) binds weakly to amino acids in hemoglobin. 
B) binds to the heme group of hemoglobin. 
C) binds more strongly to the heme than oxygen does. 
D) both binds weakly to amino acids in hemoglobin and binds to the heme group of hemoglobin. 
E) both binds to the heme group of hemoglobin and binds more strongly to the heme than oxygen does. 
A) binds weakly to amino acids in hemoglobin. 
B) binds to the heme group of hemoglobin. 
C) binds more strongly to the heme than oxygen does. 
D) both binds weakly to amino acids in hemoglobin and binds to the heme group of hemoglobin. 
E) both binds to the heme group of hemoglobin and binds more strongly to the heme than oxygen does.

Question 13

The coughing reflex is initiated when anything other than air passes into the larynx.

Accepted Answer

A) True 
 B)False

Question 14

If PCO2 is lower in the alveoli than in the blood, CO2 will diffuse from the blood in the pulmonary capillaries into the air in the alveoli.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following respiratory diseases is caused by a virus that is easily spread from person to person through coughing, sneezing, or touching contaminated objects?

Accepted Answer

A) emphysema 
B) tuberculosis 
C) asthma 
D) influenza 
E) cystic fibrosis 
A) emphysema 
B) tuberculosis 
C) asthma 
D) influenza 
E) cystic fibrosis

Question 16

The nasal cavity is divided into right and left sides by the

Accepted Answer

A) external nares 
B) internal nares 
C) nasal conchae 
D) nasal septum 
E) paranasal sinuses 
A) external nares 
B) internal nares 
C) nasal conchae 
D) nasal septum 
E) paranasal sinuses

Question 17

The amount of air that you can breathe out after a maximal inspiration, labeled B in the spirogram, is called the

Accepted Answer

A) inspiratory capacity 
B) vital capacity 
C) total lung capacity 
D) functional residual capacity 
E) minute volume of respiration 
A) inspiratory capacity 
B) vital capacity 
C) total lung capacity 
D) functional residual capacity 
E) minute volume of respiration

Question 18

The interior structure of the nose consists of two large smooth-walled cylindrical chambers that conduct air from the external nares to the nasopharynx.

Accepted Answer

A) True 
 B)False

Question 19

Gas exchange in the lungs occurs across the respiratory membrane by the process of

Accepted Answer

A) osmosis 
B) diffusion 
C) exocytosis 
D) active transport 
E) filtration 
A) osmosis 
B) diffusion 
C) exocytosis 
D) active transport 
E) filtration

Question 20

While laryngitis is common among all people, cancer of the larynx is found almost exclusively in people who smoke.

Accepted Answer

A) True 
 B)False

Exam 18: The Respiratory System

All of the following are normal changes that occur in the respiratory system during exercise EXCEPT

The right lung is smaller than the left lung because of the position of the heart.

The right lung is divided into three lobes by two deep surface fissures called the horizontal and oblique fissures.

The total pressure of a gas mixture is calculated by multiplying the partial pressures of all the gases in the mixture.

The parietal pleura lines the thoracic cavity and diaphragm, while the visceral pleura covers the outer surface of the lungs.

Describe the major functions of the nasal cavity.

Cartilaginous rings

The volume of air in one normal breath is called the

Bicarbonate ions are produced by combining carbon dioxide with water to form carbonic acid, which then dissociates to form bicarbonate and hydrogen ions.

The human lungs contain about _____ alveoli.

The true vocal cords are located in the

Carbon monoxide is a colorless and odorless gas that

The coughing reflex is initiated when anything other than air passes into the larynx.

If PCO2 is lower in the alveoli than in the blood, CO2 will diffuse from the blood in the pulmonary capillaries into the air in the alveoli.

Which of the following respiratory diseases is caused by a virus that is easily spread from person to person through coughing, sneezing, or touching contaminated objects?

The nasal cavity is divided into right and left sides by the

The amount of air that you can breathe out after a maximal inspiration, labeled B in the spirogram, is called the

The interior structure of the nose consists of two large smooth-walled cylindrical chambers that conduct air from the external nares to the nasopharynx.

Gas exchange in the lungs occurs across the respiratory membrane by the process of

While laryngitis is common among all people, cancer of the larynx is found almost exclusively in people who smoke.

Organization of the Human Body

Introductory Chemistry

Cells

Tissues

The Integumentary System

The Skeletal System

Joints

The Muscular System

Nervous Tissue

Central Nervous System, Spinal Nerves, and Cranial Nerves

Autonomic Nervous System

Somatic Senses and Special Sense

The Endocrine System

The Cardiovascular System: Blood

The Cardiovascular System: Heart

The Cardiovascular System: Blood Vessels and Circulation

The Lymphatic System and Immunity

The Digestive System

Nutrition and Metabolism

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive Systems

Development and Inheritance

Filters

If PCO₂ is lower in the alveoli than in the blood, CO₂ will diffuse from the blood in the pulmonary capillaries into the air in the alveoli.