Question 1

How does carbon monoxide affect red blood cells (RBCs)?

Accepted Answer

A)  It causes them to shrivel. 
B)  The hemoglobin within the RBC bind to carbon monoxide. 
C)  The hemoglobin rejects carbon monoxide. 
D)  The RBCs clump together. 
E)  The carbon monoxide converts to carbon dioxide. 
A)  It causes them to shrivel. 
B)  The hemoglobin within the RBC bind to carbon monoxide. 
C)  The hemoglobin rejects carbon monoxide. 
D)  The RBCs clump together. 
E)  The carbon monoxide converts to carbon dioxide.

Question 2

Use the table to determine the best answer.  
-Which of the patients above has a severe case of "test anxiety"?

Accepted Answer

The answer of Use the table to determine the best...

Question 3

The volume of air available for gas exchange per minute is called the ________.

Accepted Answer

A)  vital capacity 
B)  alveolar ventilation 
C)  minute respiratory volume 
D)  functional residual capacity 
E)  respiratory rate 
A)  vital capacity 
B)  alveolar ventilation 
C)  minute respiratory volume 
D)  functional residual capacity 
E)  respiratory rate

Question 4

Oxygenated blood is carried to the tissues of the lungs via the ________.

Accepted Answer

A)  pulmonary veins 
B)  bronchial arteries 
C)  pulmonary artery 
D)  abdominal aorta 
E)  pleural arteries 
A)  pulmonary veins 
B)  bronchial arteries 
C)  pulmonary artery 
D)  abdominal aorta 
E)  pleural arteries

Question 5

Which law explains that an increase in volume causes a decrease in pressure?

Accepted Answer

A)  Henry's Law 
B)  Dalton's Law 
C)  Charles Law 
D)  Boyle's Law 
A)  Henry's Law 
B)  Dalton's Law 
C)  Charles Law 
D)  Boyle's Law

Question 6

It is possible to consciously control the rate and depth of respiration.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following is NOT a function of the respiratory system?

Accepted Answer

A)  Olfaction 
B)  Taste 
C)  Production of chemical mediators 
D)  Voice production 
E)  Regulation of blood pH 
A)  Olfaction 
B)  Taste 
C)  Production of chemical mediators 
D)  Voice production 
E)  Regulation of blood pH

Question 8

A molecule of air enters the nose through the external nares. Which of the following is the correct pathway to the trachea?

Accepted Answer

A)  Nasal cavity, larynx, pharynx, trachea 
B)  Oral cavity, nasal cavity, larynx, pharynx, trachea 
C)  Nasopharynx, nasal cavity, laryngopharynx, trachea 
D)  Nasal cavity, pharynx, larynx, trachea 
E)  Nasal cavity, trachea, larynx, pharynx 
A)  Nasal cavity, larynx, pharynx, trachea 
B)  Oral cavity, nasal cavity, larynx, pharynx, trachea 
C)  Nasopharynx, nasal cavity, laryngopharynx, trachea 
D)  Nasal cavity, pharynx, larynx, trachea 
E)  Nasal cavity, trachea, larynx, pharynx

Question 9

Which of the following is not part of the thoracic wall?

Accepted Answer

A)  Diaphragm 
B)  Sternum 
C)  Ribs 
D)  Thoracic vertebrae 
A)  Diaphragm 
B)  Sternum 
C)  Ribs 
D)  Thoracic vertebrae

Question 10

During exercise, ventilation initially increases due to

Accepted Answer

A)  increased blood CO2 levels, stimulating baroreceptors. 
B)  decreased blood O2 levels, stimulating chemoreceptors. 
C)  decreased blood pH levels, stimulating baroreceptors. 
D)  limb movements that stimulate the respiratory center. 
E)  abrupt changes in metabolism or blood gases. 
A)  increased blood CO2 levels, stimulating baroreceptors. 
B)  decreased blood O2 levels, stimulating chemoreceptors. 
C)  decreased blood pH levels, stimulating baroreceptors. 
D)  limb movements that stimulate the respiratory center. 
E)  abrupt changes in metabolism or blood gases.

Question 11

The auditory tubes open into the ________.

Accepted Answer

A)  fauces 
B)  oropharynx 
C)  nasopharynx 
D)  laryngopharynx 
E)  nasal cavity 
A)  fauces 
B)  oropharynx 
C)  nasopharynx 
D)  laryngopharynx 
E)  nasal cavity

Question 12

Use the table to determine the best answer.  
-Which of the patients above does not have any abnormal respiratory values?

Accepted Answer

The answer of Use the table to determine the best...

Question 13

The lungs have

Accepted Answer

A)  one blood flow route and one lymphatic supply. 
B)  two blood flow routes and one lymphatic supply. 
C)  one blood flow route and two lymphatic supplies. 
D)  two blood flow routes and two lymphatic supplies. 
E)  three blood flow routes and one lymphatic supply. 
A)  one blood flow route and one lymphatic supply. 
B)  two blood flow routes and one lymphatic supply. 
C)  one blood flow route and two lymphatic supplies. 
D)  two blood flow routes and two lymphatic supplies. 
E)  three blood flow routes and one lymphatic supply.

Question 14

During swallowing, the opening into the larynx is covered by the ________.

Accepted Answer

A)  epiglottis 
B)  thyroid cartilage 
C)  cricoid cartilage 
D)  arytenoid cartilage 
E)  the "Adam's apple" 
A)  epiglottis 
B)  thyroid cartilage 
C)  cricoid cartilage 
D)  arytenoid cartilage 
E)  the "Adam's apple"

Question 15

What occurs at the respiratory membrane?

Accepted Answer

A)  Mucus removes debris. 
B)  Gas exchange between the air and blood takes place. 
C)  Macrophages accumulate to remove debris. 
D)  Gas exchange between the blood and tissues takes place. 
A)  Mucus removes debris. 
B)  Gas exchange between the air and blood takes place. 
C)  Macrophages accumulate to remove debris. 
D)  Gas exchange between the blood and tissues takes place.

Question 16

Which of the following will cause a decrease in the surface area of the respiratory membrane?

Accepted Answer

A)  emphysema 
B)  tuberculosis 
C)  pneumonia 
D)  All of the choices will reduce surface area of the respiratory membrane 
A)  emphysema 
B)  tuberculosis 
C)  pneumonia 
D)  All of the choices will reduce surface area of the respiratory membrane

Question 17

Which factors are responsible for the decrease in the volume of the alveoli?

Accepted Answer

A)  Compliance and lung recoil 
B)  Lung recoil and surface tension of water 
C)  Compliance and surface tension of water 
D)  Perfusion and lung recoil 
A)  Compliance and lung recoil 
B)  Lung recoil and surface tension of water 
C)  Compliance and surface tension of water 
D)  Perfusion and lung recoil

Question 18

Which of the following describes the function of the nasal conchae?

Accepted Answer

A)  Increases turbulence in the airflow 
B)  Olfaction 
C)  Increases surface area for cleaning, warming, and moisturizing the air 
D)  Increases turbulence and surface area for cleaning, warming, and moisturizing the air 
A)  Increases turbulence in the airflow 
B)  Olfaction 
C)  Increases surface area for cleaning, warming, and moisturizing the air 
D)  Increases turbulence and surface area for cleaning, warming, and moisturizing the air

Question 19

In which of the following sequences does PO2 progressively decrease?

Accepted Answer

A)  Body tissue, arterial blood, alveolar air 
B)  Body tissue, alveolar air, arterial blood 
C)  Blood in aorta, atmospheric air, body tissues 
D)  Atmospheric air, blood in aorta, body tissues 
E)  Body tissue, aorta, alveolar air 
A)  Body tissue, arterial blood, alveolar air 
B)  Body tissue, alveolar air, arterial blood 
C)  Blood in aorta, atmospheric air, body tissues 
D)  Atmospheric air, blood in aorta, body tissues 
E)  Body tissue, aorta, alveolar air

Question 20

The walls of the alveoli

Accepted Answer

A)  are composed of simple squamous epithelium. 
B)  contain several layers of smooth muscle. 
C)  contain goblet cells. 
D)  are surrounded by cartilage. 
E)  are ciliated. 
A)  are composed of simple squamous epithelium. 
B)  contain several layers of smooth muscle. 
C)  contain goblet cells. 
D)  are surrounded by cartilage. 
E)  are ciliated.

Exam 23: Respiratory System

How does carbon monoxide affect red blood cells (RBCs)?

Use the table to determine the best answer. -Which of the patients above has a severe case of "test anxiety"?

The volume of air available for gas exchange per minute is called the ________.

Oxygenated blood is carried to the tissues of the lungs via the ________.

Which law explains that an increase in volume causes a decrease in pressure?

It is possible to consciously control the rate and depth of respiration.

Which of the following is NOT a function of the respiratory system?

A molecule of air enters the nose through the external nares. Which of the following is the correct pathway to the trachea?

Which of the following is not part of the thoracic wall?

During exercise, ventilation initially increases due to

The auditory tubes open into the ________.

Use the table to determine the best answer. -Which of the patients above does not have any abnormal respiratory values?

The lungs have

During swallowing, the opening into the larynx is covered by the ________.

What occurs at the respiratory membrane?

Which of the following will cause a decrease in the surface area of the respiratory membrane?

Which factors are responsible for the decrease in the volume of the alveoli?

Which of the following describes the function of the nasal conchae?

In which of the following sequences does PO2 progressively decrease?

The walls of the alveoli

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joint and Movement

Muscular System: Histology and Physiology

Muscular System: Gross Anatomy

Functional Organization of Nervous Tissue

Spinal Cord and Spinal Nerves

Brain and Cranial Nerves

Integration of Nervous System Functions

The Special Senses

Autonomic Nervous System

Functional Organization of the Endocrine System

Endocrine Glands

Cardiovascular System: Blood

Cardiovascular System: the Heart

Cardiovascular System: Blood Vessels and Circulation

Lymphatic System and Immunity

Digestive System

Nutrition, Metabolism, and Temperature Regulation

Urinary System

Water, Electrolyte, and Acid-Base Balance

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Development, Growth, Aging, and Genetics

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In which of the following sequences does PO₂ progressively decrease?