Question 1

Which of the following statements concerning the dorsal and ventral respiratory groups is false?

Accepted Answer

A)  They are located in the reticular activating system. 
B)  There is cross communication between these two groups. 
C)  These groups establish the basic rate and depth of breathing. 
D)  These groups increase the number of action potentials to the respiratory muscles during inspiration. 
E)  Two dorsal and two ventral respiratory groups make up the medullary respiratory center. 
A)  They are located in the reticular activating system. 
B)  There is cross communication between these two groups. 
C)  These groups establish the basic rate and depth of breathing. 
D)  These groups increase the number of action potentials to the respiratory muscles during inspiration. 
E)  Two dorsal and two ventral respiratory groups make up the medullary respiratory center.

Question 2

The largest division of each lung are _____, which are divided into _____.

Accepted Answer

A)  lobules; segments 
B)  segments; lobules 
C)  lobes; lobules 
D)  segments; lobes 
E)  lobes; segments 
A)  lobules; segments 
B)  segments; lobules 
C)  lobes; lobules 
D)  segments; lobes 
E)  lobes; segments

Question 3

If there is an accumulation of acidic products in the plasma, one would expect

Accepted Answer

A)  an increase in respiration rate. 
B)  a decrease in respiration rate. 
C)  no influence on respiration rate. 
D)  an increase in residual volume. 
E)  apnea. 
A)  an increase in respiration rate. 
B)  a decrease in respiration rate. 
C)  no influence on respiration rate. 
D)  an increase in residual volume. 
E)  apnea.

Question 4

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 5

Arrange the following in order from highest to lowest PO2. (1) PO2 of pulmonary veins
(2) PO2 of pulmonary artery
(3) PO2 of alveolar air

Accepted Answer

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

Question 6

Physiological dead air space is anatomic dead space plus

Accepted Answer

A)  the residual volume. 
B)  the volume of any alveoli where gas exchange is diminished. 
C)  the volume of blood flowing to the lungs. 
D)  the respiration rate. 
E)  tidal volume. 
A)  the residual volume. 
B)  the volume of any alveoli where gas exchange is diminished. 
C)  the volume of blood flowing to the lungs. 
D)  the respiration rate. 
E)  tidal volume.

Question 7

The __________ zone extends from the trachea to the terminal bronchioles.

Accepted Answer

The answer of The __________ zone extends from the trachea...

Question 8

Internal respiration refers to

Accepted Answer

A)  atmospheric air coming into the lungs. 
B)  gas exchange between the lungs and the blood. 
C)  gas exchange in the atmosphere. 
D)  gas exchange between the blood and body tissues. 
E)  cellular respiration. 
A)  atmospheric air coming into the lungs. 
B)  gas exchange between the lungs and the blood. 
C)  gas exchange in the atmosphere. 
D)  gas exchange between the blood and body tissues. 
E)  cellular respiration.

Question 9

When 2,3-bisphosphoglycerate (BPG) levels increase, hemoglobin

Accepted Answer

A)  releases less oxygen to tissues. 
B)  releases more carbon dioxide to tissues. 
C)  releases more oxygen to tissues. 
D)  releases less carbon dioxide to tissues. 
E)  None of these choices is correct. 
A)  releases less oxygen to tissues. 
B)  releases more carbon dioxide to tissues. 
C)  releases more oxygen to tissues. 
D)  releases less carbon dioxide to tissues. 
E)  None of these choices is correct.

Question 10

Increasing ventilation will increase the PO2 and decrease the PCO2, which promotes gas exchange.

Accepted Answer

A) True 
 B)False

Question 11

Hemoglobin that has oxygen attached is called

Accepted Answer

A)  hemoglobin-oxygen complex. 
B)  carbaminohemoglobin. 
C)  oxyhemoglobin. 
D)  deoxyhemoglobin. 
E)  globoxygen. 
A)  hemoglobin-oxygen complex. 
B)  carbaminohemoglobin. 
C)  oxyhemoglobin. 
D)  deoxyhemoglobin. 
E)  globoxygen.

Question 12

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 13

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 14

Oxygen diffusion from the alveolus to the pulmonary capillary occurs because

Accepted Answer

A)  alveolar PO2 is greater than capillary PO2. 
B)  oxygen diffuses faster than carbon dioxide. 
C)  alveolar PCO2 is greater than capillary PCO2. 
D)  alveolar PO2 is less than capillary PCO2. 
E)  carbon dioxide diffuses faster than oxygen. 
A)  alveolar PO2 is greater than capillary PO2. 
B)  oxygen diffuses faster than carbon dioxide. 
C)  alveolar PCO2 is greater than capillary PCO2. 
D)  alveolar PO2 is less than capillary PCO2. 
E)  carbon dioxide diffuses faster than oxygen.

Question 15

Gas exchange between the air in the lungs and the blood takes place in the

Accepted Answer

A)  alveoli. 
B)  primary bronchi. 
C)  terminal bronchioles. 
D)  trachea. 
E)  respiratory bronchi. 
A)  alveoli. 
B)  primary bronchi. 
C)  terminal bronchioles. 
D)  trachea. 
E)  respiratory bronchi.

Question 16

Oxygen and carbon dioxide are exchanged across the respiratory membrane by the process of

Accepted Answer

A)  active transport. 
B)  diffusion. 
C)  filtration. 
D)  osmosis. 
E)  cotransport. 
A)  active transport. 
B)  diffusion. 
C)  filtration. 
D)  osmosis. 
E)  cotransport.

Question 17

Calculate the alveolar ventilation if the tidal volume is 500 ml., the respiratory rate is 12/minute, and the anatomical dead space is 100 ml.

Accepted Answer

A)  1200 ml 
B)  1800 ml 
C)  4800 ml 
D)  6000 ml 
E)  7200 ml 
A)  1200 ml 
B)  1800 ml 
C)  4800 ml 
D)  6000 ml 
E)  7200 ml

Question 18

Use the following key to determine the best answer.
-(1) PO2 of arterial blood;
(2) PO2 of intracellular fluid.

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 19

Which of the following results in an increase in shunted blood (blood not completely oxygenated)?

Accepted Answer

A)  exercise 
B)  pulmonary edema 
C)  increased heart rate 
D)  increased respiration rate 
E)  None of these choices is correct. 
A)  exercise 
B)  pulmonary edema 
C)  increased heart rate 
D)  increased respiration rate 
E)  None of these choices is correct.

Question 20

The nasal vestibule is located in the ______ portion of the nasal cavity.

Accepted Answer

A)  posterior 
B)  exterior 
C)  upper 
D)  external 
E)  anterior 
A)  posterior 
B)  exterior 
C)  upper 
D)  external 
E)  anterior

Exam 23: Respiratory System

Which of the following statements concerning the dorsal and ventral respiratory groups is false?

The largest division of each lung are _____, which are divided into _____.

If there is an accumulation of acidic products in the plasma, one would expect

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

Arrange the following in order from highest to lowest PO2. (1) PO2 of pulmonary veins (2) PO2 of pulmonary artery (3) PO2 of alveolar air

Physiological dead air space is anatomic dead space plus

The __________ zone extends from the trachea to the terminal bronchioles.

Internal respiration refers to

When 2,3-bisphosphoglycerate (BPG) levels increase, hemoglobin

Increasing ventilation will increase the PO2 and decrease the PCO2, which promotes gas exchange.

Hemoglobin that has oxygen attached is called

What occurs at the respiratory membrane?

In which of the following sequences does PO2 progressively decrease?

Oxygen diffusion from the alveolus to the pulmonary capillary occurs because

Gas exchange between the air in the lungs and the blood takes place in the

Oxygen and carbon dioxide are exchanged across the respiratory membrane by the process of

Calculate the alveolar ventilation if the tidal volume is 500 ml., the respiratory rate is 12/minute, and the anatomical dead space is 100 ml.

Use the following key to determine the best answer. -(1) PO2 of arterial blood; (2) PO2 of intracellular fluid.

Which of the following results in an increase in shunted blood (blood not completely oxygenated)?

The nasal vestibule is located in the ______ portion of the nasal cavity.

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

The largest division of each lung are _, which are divided into _.

Arrange the following in order from highest to lowest PO₂. (1) PO₂ of pulmonary veins (2) PO₂ of pulmonary artery (3) PO₂ of alveolar air

Increasing ventilation will increase the PO₂ and decrease the PCO₂, which promotes gas exchange.

In which of the following sequences does PO₂ progressively decrease?

Use the following key to determine the best answer. -(1) PO₂ of arterial blood; (2) PO₂ of intracellular fluid.