Question 1

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 2

Use the following key to determine the best answer.
-(1) PO2 in alveolar air;
(2) PO2 in venous blood

Accepted Answer

A) Choose this if the first item is greater than the second item. 
B) Choose this if the first item is less than the second item. 
C) Choose this if the first item is equal or nearly equal to the second item. 
A) Choose this if the first item is greater than the second item. 
B) Choose this if the first item is less than the second item. 
C) Choose this if the first item is equal or nearly equal to the second item.

Question 3

-Which of the patients above is suffering from emphysema?

Accepted Answer

The answer of  
-Which of the patients above is...

Question 4

Mr. Smith hypoventilates and retains too much carbon dioxide. Which of the following receptors is stimulated by an increase in carbon dioxide?

Accepted Answer

A)  irritant receptors 
B)  pressure receptors 
C)  osmoreceptors 
D)  peripheral chemoreceptors 
E)  baroreceptors 
A)  irritant receptors 
B)  pressure receptors 
C)  osmoreceptors 
D)  peripheral chemoreceptors 
E)  baroreceptors

Question 5

Apnea is the slowing of respiration as occurs during sleep.

Accepted Answer

A) True 
 B)False

Question 6

As acidity increases, how does this affect the affinity of hemoglobin for the oxygen it carries?

Accepted Answer

A)  Oxyhemoglobin affinity decreases. 
B)  Oxyhemoglobin affinity increases. 
C)  Oxyhemoglobin affinity remains the same. 
D)  Hemoglobin loses its affinity for oxygen. 
E)  None of these choices is correct. 
A)  Oxyhemoglobin affinity decreases. 
B)  Oxyhemoglobin affinity increases. 
C)  Oxyhemoglobin affinity remains the same. 
D)  Hemoglobin loses its affinity for oxygen. 
E)  None of these choices is correct.

Question 7

All of the following are changes seen in the respiratory system with aging, except

Accepted Answer

A)  Decreased vital capacity 
B)  Decreased maximum minute ventilation 
C)  Increased deadspace 
D)  Decreased inspiratory reserve volume 
E)  Decreased lung compliance 
A)  Decreased vital capacity 
B)  Decreased maximum minute ventilation 
C)  Increased deadspace 
D)  Decreased inspiratory reserve volume 
E)  Decreased lung compliance

Question 8

A decrease in the surface area of the respiratory membrane will cause the diffusion rate to

Accepted Answer

A)  increase. 
B)  decrease. 
C)  remain unchanged. 
A)  increase. 
B)  decrease. 
C)  remain unchanged.

Question 9

The posterior wall of the trachea contains smooth muscle called the __________ muscle.

Accepted Answer

The answer of The posterior wall of the trachea contains...

Question 10

The portion of the pharynx that extends from the internal nares to the level of the uvula is the

Accepted Answer

A)  glottis. 
B)  nasopharynx. 
C)  oropharynx. 
D)  laryngopharynx. 
E)  glottopharynx. 
A)  glottis. 
B)  nasopharynx. 
C)  oropharynx. 
D)  laryngopharynx. 
E)  glottopharynx.

Question 11

The Bohr effect refers to the

Accepted Answer

A)  mechanism involved in diffusion of nitrogen into the blood. 
B)  physical laws governing the solubility of gases in fluids. 
C)  effect of pH on the oxygen-hemoglobin dissociation curve. 
D)  chemical equilibrium between carbonic acid and bicarbonate in the blood. 
E)  effect of temperature on the oxygen-hemoglobin dissociation curve. 
A)  mechanism involved in diffusion of nitrogen into the blood. 
B)  physical laws governing the solubility of gases in fluids. 
C)  effect of pH on the oxygen-hemoglobin dissociation curve. 
D)  chemical equilibrium between carbonic acid and bicarbonate in the blood. 
E)  effect of temperature on the oxygen-hemoglobin dissociation curve.

Question 12

During exercise, the oxygen-hemoglobin dissociation curve

Accepted Answer

A)  shifts to the right. 
B)  shifts to the left. 
C)  doesn't shift. 
A)  shifts to the right. 
B)  shifts to the left. 
C)  doesn't shift.

Question 13

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

Accepted Answer

A)  vocal folds 
B)  vestibular folds 
C)  cricothyroid ligaments 
D)  epiglottic folds 
E)  vocal folds and vestibular folds 
A)  vocal folds 
B)  vestibular folds 
C)  cricothyroid ligaments 
D)  epiglottic folds 
E)  vocal folds and vestibular folds

Question 14

The olfactory epithelium responsible for the sense of smell is located in the

Accepted Answer

A)  floor of the nasal cavity. 
B)  wall of the nasal septum. 
C)  lining of the nasopharynx. 
D)  cavity of the paranasal sinuses. 
E)  roof of the nasal cavity. 
A)  floor of the nasal cavity. 
B)  wall of the nasal septum. 
C)  lining of the nasopharynx. 
D)  cavity of the paranasal sinuses. 
E)  roof of the nasal cavity.

Question 15

Rhythmicity of breathing involves

Accepted Answer

A)  conscious effort and control. 
B)  stimulation of inspiration. Expiration is automatic. 
C)  pontine respiratory group as a necessary part. 
D)  a set pattern of inspiration - expiration that is always the same. 
E)  the pre-Bötzinger complex of the ventral respiratory group. 
A)  conscious effort and control. 
B)  stimulation of inspiration. Expiration is automatic. 
C)  pontine respiratory group as a necessary part. 
D)  a set pattern of inspiration - expiration that is always the same. 
E)  the pre-Bötzinger complex of the ventral respiratory group.

Question 16

Hemoglobin that has released its oxygen

Accepted Answer

A)  loses its affinity for oxygen. 
B)  will dissolve in the plasma. 
C)  will bind more readily to carbon dioxide. 
D)  is broken down to heme and globin and excreted. 
E)  will bind more readily to oxygen. 
A)  loses its affinity for oxygen. 
B)  will dissolve in the plasma. 
C)  will bind more readily to carbon dioxide. 
D)  is broken down to heme and globin and excreted. 
E)  will bind more readily to oxygen.

Question 17

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.

Question 18

The chemosensitive area of the brain is located in the

Accepted Answer

A)  pons. 
B)  cerebral peduncles. 
C)  cerebellum. 
D)  hypothalamus. 
E)  medulla oblongata. 
A)  pons. 
B)  cerebral peduncles. 
C)  cerebellum. 
D)  hypothalamus. 
E)  medulla oblongata.

Question 19

Contraction of respiratory muscles are responsible for the movement of air out of the lungs in quiet expiration.

Accepted Answer

A) True 
 B)False

Question 20

Arrange the following structures in the order air passes through them during inhalation: (1) alveolar ducts
(2) alveolus
(3) respiratory bronchiole
(4) terminal bronchiole

Accepted Answer

A)  1, 2, 3, 4 
B)  2, 1, 3, 4 
C)  4, 3, 1, 2 
D)  3, 2, 1, 4 
E)  4, 3, 2, 1 
A)  1, 2, 3, 4 
B)  2, 1, 3, 4 
C)  4, 3, 1, 2 
D)  3, 2, 1, 4 
E)  4, 3, 2, 1

Exam 23: Respiratory System

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

Use the following key to determine the best answer. -(1) PO2 in alveolar air; (2) PO2 in venous blood

-Which of the patients above is suffering from emphysema?

Mr. Smith hypoventilates and retains too much carbon dioxide. Which of the following receptors is stimulated by an increase in carbon dioxide?

Apnea is the slowing of respiration as occurs during sleep.

As acidity increases, how does this affect the affinity of hemoglobin for the oxygen it carries?

All of the following are changes seen in the respiratory system with aging, except

A decrease in the surface area of the respiratory membrane will cause the diffusion rate to

The posterior wall of the trachea contains smooth muscle called the __________ muscle.

The portion of the pharynx that extends from the internal nares to the level of the uvula is the

The Bohr effect refers to the

During exercise, the oxygen-hemoglobin dissociation curve

When these ligaments or folds come together, they prevent food from entering the lower respiratory tract.

The olfactory epithelium responsible for the sense of smell is located in the

Rhythmicity of breathing involves

Hemoglobin that has released its oxygen

The walls of the alveoli

The chemosensitive area of the brain is located in the

Contraction of respiratory muscles are responsible for the movement of air out of the lungs in quiet expiration.

Arrange the following structures in the order air passes through them during inhalation: (1) alveolar ducts (2) alveolus (3) respiratory bronchiole (4) terminal bronchiole

The Human Organism

The Chemical Basis of Life

Cell Biology

Tissues

Integumentary System

Skeletal System: Bones and Bone Tissue

Skeletal System: Gross Anatomy

Joints 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-Based Balance

Reproductive System

Development, Growth, Aging, and Genetics

Filters

Use the following key to determine the best answer. -(1) PO₂ in alveolar air; (2) PO₂ in venous blood