Question 1

Which of the following is part of the upper respiratory tract?

Accepted Answer

A)  lungs 
B)  pharynx 
C)  trachea 
D)  bronchi 
E)  bronchioles 
A)  lungs 
B)  pharynx 
C)  trachea 
D)  bronchi 
E)  bronchioles

Question 2

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 3

External 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 4

-The diagram illustrates the respiratory membrane. What layer is "A"?

Accepted Answer

A)  basement membrane of capillary endothelium 
B)  capillary endothelium 
C)  alveolar epithelium 
D)  alveolar fluid 
E)  basement of alveolar epithelium 
A)  basement membrane of capillary endothelium 
B)  capillary endothelium 
C)  alveolar epithelium 
D)  alveolar fluid 
E)  basement of alveolar epithelium

Question 5

Which of the following muscles increases the volume of the thorax during a normal inhalation? (1) diaphragm
(2) external intercostals
(3) internal intercostals
(4) rectus abdominis

Accepted Answer

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

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

Which of the following functions is associated with the nose?

Accepted Answer

A)  initiating the cough reflex 
B)  external respiration 
C)  warming the air 
D)  producing mucus to trap debris from the air 
E)  warming the air and producing mucus to trap debris from the air 
A)  initiating the cough reflex 
B)  external respiration 
C)  warming the air 
D)  producing mucus to trap debris from the air 
E)  warming the air and producing mucus to trap debris from the air

Question 8

Match the disorder of the respiratory system with the best description.
-emphysema

Accepted Answer

A) destruction of the alveolar walls 
B) inflammation of the bronchii 
C) inherited disease that affects secretory cells lining the lungs 
D) replacement of lung tissue with fibrous connective tissue 
E) infant stops breathing during sleep 
A) destruction of the alveolar walls 
B) inflammation of the bronchii 
C) inherited disease that affects secretory cells lining the lungs 
D) replacement of lung tissue with fibrous connective tissue 
E) infant stops breathing during sleep

Question 9

Which of the following statements concerning the larynx is correct?

Accepted Answer

A)  The larynx contains four unpaired cartilages. 
B)  When the glottis closes, air is prevented from leaving the lungs. 
C)  Unlike other portions of the larynx, the epiglottis consists of some bony tissue. 
D)  The inferior laryngeal cartilage is the thyroid cartilage. 
E)  The epiglottis is also called "Adam's apple". 
A)  The larynx contains four unpaired cartilages. 
B)  When the glottis closes, air is prevented from leaving the lungs. 
C)  Unlike other portions of the larynx, the epiglottis consists of some bony tissue. 
D)  The inferior laryngeal cartilage is the thyroid cartilage. 
E)  The epiglottis is also called "Adam's apple".

Question 10

When carbon dioxide levels in the blood increase, the

Accepted Answer

A)  condition is called hypocapnia. 
B)  pH of the blood increases. 
C)  blood becomes more acidic. 
D)  number of hydrogen ions in the blood decreases. 
E)  blood becomes more alkaline. 
A)  condition is called hypocapnia. 
B)  pH of the blood increases. 
C)  blood becomes more acidic. 
D)  number of hydrogen ions in the blood decreases. 
E)  blood becomes more alkaline.

Question 11

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 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

-Which of the patients above does not have any abnormal respiratory values?

Accepted Answer

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

Question 14

The Haldane effect means that

Accepted Answer

A)  as hemoglobin releases CO2, the ability to pick up O2 increases. 
B)  as hemoglobin releases bicarbonate ions, the ability to pick up chloride ions increases. 
C)  as hemoglobin releases O2, the ability to pick up CO2 increases. 
D)  as hemoglobin releases O2, the ability to pick up CO2 decreases. 
A)  as hemoglobin releases CO2, the ability to pick up O2 increases. 
B)  as hemoglobin releases bicarbonate ions, the ability to pick up chloride ions increases. 
C)  as hemoglobin releases O2, the ability to pick up CO2 increases. 
D)  as hemoglobin releases O2, the ability to pick up CO2 decreases.

Question 15

Contraction of the __________ muscles will elevate the ribs and move the sternum.

Accepted Answer

External i

Question 16

The respiratory zone of the tracheobronchial tree includes which of the following?

Accepted Answer

A)  trachea 
B)  alveoli 
C)  primary bronchi 
D)  larynx 
E)  tertiary bronchi 
A)  trachea 
B)  alveoli 
C)  primary bronchi 
D)  larynx 
E)  tertiary bronchi

Question 17

As the result of an asthmatic attack,

Accepted Answer

A)  ventilation exceeds the ability of blood to pick up oxygen. 
B)  ventilation is inadequate to oxygenate blood. 
C)  pulmonary blood flow is reduced while ventilation remains normal. 
D)  the surface area available for gas exchange increases. 
E)  bronchioles dilate. 
A)  ventilation exceeds the ability of blood to pick up oxygen. 
B)  ventilation is inadequate to oxygenate blood. 
C)  pulmonary blood flow is reduced while ventilation remains normal. 
D)  the surface area available for gas exchange increases. 
E)  bronchioles dilate.

Question 18

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 19

Which of the following statements concerning the lungs and the pleura is true?

Accepted Answer

A)  Each lung is suspended in a separate pleural cavity. 
B)  Parietal pleura covers the surface of each lung. 
C)  The space between the visceral and parietal pleurae is called the mediastinum. 
D)  The pleural fluid assists in gas exchange. 
E)  The pleural membranes adhere, but cannot slide past each other. 
A)  Each lung is suspended in a separate pleural cavity. 
B)  Parietal pleura covers the surface of each lung. 
C)  The space between the visceral and parietal pleurae is called the mediastinum. 
D)  The pleural fluid assists in gas exchange. 
E)  The pleural membranes adhere, but cannot slide past each other.

Question 20

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

Exam 23: Respiratory System

Which of the following is part of the upper respiratory tract?

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

External respiration refers to

-The diagram illustrates the respiratory membrane. What layer is "A"?

Which of the following muscles increases the volume of the thorax during a normal inhalation? (1) diaphragm (2) external intercostals (3) internal intercostals (4) rectus abdominis

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

Which of the following functions is associated with the nose?

Match the disorder of the respiratory system with the best description. -emphysema

Which of the following statements concerning the larynx is correct?

When carbon dioxide levels in the blood increase, the

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

What occurs at the respiratory membrane?

-Which of the patients above does not have any abnormal respiratory values?

The Haldane effect means that

Contraction of the __________ muscles will elevate the ribs and move the sternum.

The respiratory zone of the tracheobronchial tree includes which of the following?

As the result of an asthmatic attack,

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

Which of the following statements concerning the lungs and the pleura is true?

In which of the following sequences does PO2 progressively decrease?

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

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Nutrition, Metabolism, and Temperature Regulation

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Water, Electrolytes, and Acidbase Balance

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Development, Growth, Aging, and Genetics

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

In which of the following sequences does PO₂ progressively decrease?