Question 1

The PCO₂ in alveolar air is _____ blood.

Accepted Answer

A)  less than in the systemic venous 
B)  greater than in the systemic venous 
C)  equal to the systemic arterial 
D)  Both A and C are correct. 
A)  less than in the systemic venous 
B)  greater than in the systemic venous 
C)  equal to the systemic arterial 
D)  Both A and C are correct.

Question 2

Each hemoglobin molecule can carry how many oxygen molecules?

Accepted Answer

A)  One 
B)  Two 
C)  Four 
D)  Eight 
A)  One 
B)  Two 
C)  Four 
D)  Eight

Question 3

If the tidal volume of a given individual is 500 ml,then the anatomical dead space is approximately _____ ml.

Accepted Answer

A)  50 
B)  100 
C)  150 
D)  200 
A)  50 
B)  100 
C)  150 
D)  200

Question 4

A sudden rise in arterial blood pressure will:

Accepted Answer

A)  cause a reflex increase in rate and depth of respirations. 
B)  cause a reflex slowing of respirations. 
C)  have no effect on respirations because of the control mechanisms in the cerebral cortex. 
D)  cause an immediate decrease in respirations followed by a prolonged period of rapid and shallow respirations. 
A)  cause a reflex increase in rate and depth of respirations. 
B)  cause a reflex slowing of respirations. 
C)  have no effect on respirations because of the control mechanisms in the cerebral cortex. 
D)  cause an immediate decrease in respirations followed by a prolonged period of rapid and shallow respirations.

Question 5

Normal,quiet breathing is known as:

Accepted Answer

A)  orthopnea. 
B)  hyperpnea. 
C)  dyspnea. 
D)  eupnea. 
A)  orthopnea. 
B)  hyperpnea. 
C)  dyspnea. 
D)  eupnea.

Question 6

Match each type of breathing with its corresponding definition.
-increased breathing that is regulated to meet an increased demand by the body for oxygen

Accepted Answer

A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea 
A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea

Question 7

Which of the following would you expect to happen to cellular respiration during exercise?

Accepted Answer

A)  Increased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause an increase in respiration rate. 
B)  Decreased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause a decrease in respiration rate. 
C)  Exercise causes a decrease in cellular respiration by shifting peripheral chemoreceptors in the heart to cause retention of oxygen. 
D)  Increased cellular respiration occurs during exercise, causing a decrease in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause a decrease in respiration rate. 
A)  Increased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause an increase in respiration rate. 
B)  Decreased cellular respiration occurs during exercise, causing a rise in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause a decrease in respiration rate. 
C)  Exercise causes a decrease in cellular respiration by shifting peripheral chemoreceptors in the heart to cause retention of oxygen. 
D)  Increased cellular respiration occurs during exercise, causing a decrease in plasma PCO2, which is detected by central chemoreceptors in the brain and perhaps peripheral chemoreceptors in the carotid sinus and aorta to cause a decrease in respiration rate.

Question 8

Carbon dioxide is carried in three forms in the blood.Ranking them from greatest to least amount carried,the sequence would be:

Accepted Answer

A)  dissolved in the plasma, carbaminohemoglobin, and bicarbonate ion. 
B)  carbaminohemoglobin, bicarbonate ion, and dissolved in plasma. 
C)  bicarbonate ion, dissolved in plasma, and carbaminohemoglobin. 
D)  bicarbonate ion, carbaminohemoglobin, and dissolved in plasma. 
A)  dissolved in the plasma, carbaminohemoglobin, and bicarbonate ion. 
B)  carbaminohemoglobin, bicarbonate ion, and dissolved in plasma. 
C)  bicarbonate ion, dissolved in plasma, and carbaminohemoglobin. 
D)  bicarbonate ion, carbaminohemoglobin, and dissolved in plasma.

Question 9

Match each type of breathing with its corresponding definition.
-normal,quiet breathing

Accepted Answer

A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea 
A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea

Question 10

Match each type of breathing with its corresponding definition.
-an increase in pulmonary ventilation in excess of the need for oxygen

Accepted Answer

A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea 
A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea

Question 11

Explain the terms ventilation and perfusion.Explain how they must work together to allow efficient gas exchange in the lung.

Accepted Answer

Ventilation refers to the process of bre

Question 12

When the pressure in the lung is greater than atmospheric pressure:

Accepted Answer

A)  inspiration occurs. 
B)  expiration occurs. 
C)  lung tissue has collapsed. 
D)  the bronchioles are obstructed. 
A)  inspiration occurs. 
B)  expiration occurs. 
C)  lung tissue has collapsed. 
D)  the bronchioles are obstructed.

Question 13

Match each pulmonary volume with its corresponding description or definition.
-typical volume of air moved into and out of the lungs during normal,quiet breathing

Accepted Answer

A) Tidal volume 
B) Vital capacity 
C) Inspiratory reserve volume 
D) Expiratory reserve volume 
E) Residual volume
F)Minimal air 
A) Tidal volume 
B) Vital capacity 
C) Inspiratory reserve volume 
D) Expiratory reserve volume 
E) Residual volume
F)Minimal air

Question 14

Explain the process by which oxygen is transported by the blood.

Accepted Answer

Oxygen is transported by the blood throu

Question 15

Identify the major factors that help determine the amount of oxygen that diffuses into the blood each minute.

Accepted Answer

The major factors that help determine th

Question 16

Match each type of breathing with its corresponding definition.
-labored or difficult breathing; often associated with hypoventilation

Accepted Answer

A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea 
A) Dyspnea 
B) Cheyne-Stokes respiration 
C) Eupnea 
D) Hypoventilation 
E) Biot breathing
F)Hyperventilation
G)Hyperpnea
H)Orthopnea
I)Apneusis
J)Apnea

Question 17

The amount of air left in the lung after a normal expiration is called:

Accepted Answer

A)  anatomical dead air space. 
B)  physiological dead air space. 
C)  functional residual capacity. 
D)  vital capacity. 
A)  anatomical dead air space. 
B)  physiological dead air space. 
C)  functional residual capacity. 
D)  vital capacity.

Question 18

Vital capacity is defined as the:

Accepted Answer

A)  maximum volume of air that can be moved into and out of the lungs during forced respiration. 
B)  volume of air that can be forcibly exhaled after a normal inspiration. 
C)  volume of air that can be forcibly exhaled at the end of a normal expiration. 
D)  total volume of air contained in the respiratory passages. 
A)  maximum volume of air that can be moved into and out of the lungs during forced respiration. 
B)  volume of air that can be forcibly exhaled after a normal inspiration. 
C)  volume of air that can be forcibly exhaled at the end of a normal expiration. 
D)  total volume of air contained in the respiratory passages.

Question 19

Boyle law states that the volume of a gas varies _____ with pressure at a _____ temperature.

Accepted Answer

A)  directly; constant 
B)  inversely; constant 
C)  directly; constantly changing 
D)  inversely; constantly changing 
A)  directly; constant 
B)  inversely; constant 
C)  directly; constantly changing 
D)  inversely; constantly changing

Question 20

Each hemoglobin molecule can carry how many carbon dioxide molecules?

Accepted Answer

A)  Two 
B)  Four 
C)  Eight 
D)  Hemoglobin cannot carry carbon dioxide molecules. 
A)  Two 
B)  Four 
C)  Eight 
D)  Hemoglobin cannot carry carbon dioxide molecules.

Exam 27: B: Physiology of the Respiratory System

The PCO₂ in alveolar air is _____ blood.

Each hemoglobin molecule can carry how many oxygen molecules?

If the tidal volume of a given individual is 500 ml,then the anatomical dead space is approximately _____ ml.

A sudden rise in arterial blood pressure will:

Normal,quiet breathing is known as:

Match each type of breathing with its corresponding definition. -increased breathing that is regulated to meet an increased demand by the body for oxygen

Which of the following would you expect to happen to cellular respiration during exercise?

Carbon dioxide is carried in three forms in the blood.Ranking them from greatest to least amount carried,the sequence would be:

Match each type of breathing with its corresponding definition. -normal,quiet breathing

Match each type of breathing with its corresponding definition. -an increase in pulmonary ventilation in excess of the need for oxygen

Explain the terms ventilation and perfusion.Explain how they must work together to allow efficient gas exchange in the lung.

When the pressure in the lung is greater than atmospheric pressure:

Match each pulmonary volume with its corresponding description or definition. -typical volume of air moved into and out of the lungs during normal,quiet breathing

Explain the process by which oxygen is transported by the blood.

Identify the major factors that help determine the amount of oxygen that diffuses into the blood each minute.

Match each type of breathing with its corresponding definition. -labored or difficult breathing; often associated with hypoventilation

The amount of air left in the lung after a normal expiration is called:

Vital capacity is defined as the:

Boyle law states that the volume of a gas varies _____ with pressure at a _____ temperature.

Each hemoglobin molecule can carry how many carbon dioxide molecules?

A: Organization of the Body

B: Organization of the Body

A: The Chemical Basis of Life

B: The Chemical Basis of Life

A: Anatomy of Cells

B: Anatomy of Cells

Physiology of Cells

Cell Growth and Reproduction

Tissues

A: Skin and Its Appendages

B: Skin and Its Appendages

A: Skeletal Tissues

B: Skeletal Tissues

Skeletal System

A: Articulations

B: Articulations

A: Anatomy of the Muscular System

B: Anatomy of the Muscular System

A: Physiology of the Muscular System

B: Physiology of the Muscular System

A: Nervous System Cells

B: Nervous System Cells

A: Central Nervous System

B: Central Nervous System

Peripheral Nervous System

Autonomic Nervous System

A: Sense Organs

B: Sense Organs

Endocrine System

Endocrine Glands

Blood

Anatomy of the Cardiovascular System

A: Physiology of the Cardiovascular System

B: Physiology of the Cardiovascular System

Lymphatic System

A: Immune System

B: Immune System

Stress

Anatomy of the Respiratory System

A: Physiology of the Respiratory System

A: Anatomy of the Digestive System

B: Anatomy of the Digestive System

A: Physiology of the Digestive System

B: Physiology of the Digestive System

A: Nutrition and Metabolism

B: Nutrition and Metabolism

A: Urinary System

B: Urinary System

Fluid and Electrolyte Balance

Acid-Base Balance

Male Reproductive System

A: Female Reproductive System

B: Female Reproductive System

A: Growth and Development

B: Growth and Development

A: Genetics and Heredity

B: Genetics and Heredity

Filters

Boyle law states that the volume of a gas varies _ with pressure at a _ temperature.