Question 1

The ________ inhibit the apneustic centers and promote passive or active exhalation.

Accepted Answer

A)  DRG 
B)  VRG 
C)  pheumotaxic centers 
D)  LRG 
E)  inspiratory centers 
A)  DRG 
B)  VRG 
C)  pheumotaxic centers 
D)  LRG 
E)  inspiratory centers

Question 2

A 10 percent increase in the level of carbon dioxide in the blood will

Accepted Answer

A)  decrease the rate of breathing. 
B)  double the respiratory rate. 
C)  decrease pulmonary ventilation. 
D)  decrease the alveolar ventilation rate. 
E)  decrease the vital capacity. 
A)  decrease the rate of breathing. 
B)  double the respiratory rate. 
C)  decrease pulmonary ventilation. 
D)  decrease the alveolar ventilation rate. 
E)  decrease the vital capacity.

Question 3

A unique feature of the left lung is the

Accepted Answer

A)  hilum. 
B)  carina. 
C)  primary bronchus. 
D)  cardiac notch. 
E)  apex. 
A)  hilum. 
B)  carina. 
C)  primary bronchus. 
D)  cardiac notch. 
E)  apex.

Question 4

The term hypercapnia refers to

Accepted Answer

A)  the cessation of breathing. 
B)  elevated PCO2. 
C)  elevated PO2. 
D)  an increase in pH. 
E)  labored breathing. 
A)  the cessation of breathing. 
B)  elevated PCO2. 
C)  elevated PO2. 
D)  an increase in pH. 
E)  labored breathing.

Question 5

Henry's law states that

Accepted Answer

A)  gas volume and temperature are directly proportional. 
B)  gas volume and pressure are inversely proportional. 
C)  the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure. 
D)  in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture. 
E)  gas pressure is inversely proportional to gas volume. 
A)  gas volume and temperature are directly proportional. 
B)  gas volume and pressure are inversely proportional. 
C)  the volume of gas that will dissolve in a solvent is proportional to the solubility of the gas and the gas pressure. 
D)  in a mixture of gases such as air, the total pressure is the sum of the individual partial pressures of the gases in the mixture. 
E)  gas pressure is inversely proportional to gas volume.

Question 6

The nasal cavity is separated from the oral cavity by the

Accepted Answer

A)  hard palate. 
B)  soft palate. 
C)  cribriform plate. 
D)  internal nares. 
E)  pharyngeal septum. 
A)  hard palate. 
B)  soft palate. 
C)  cribriform plate. 
D)  internal nares. 
E)  pharyngeal septum.

Question 7

Blockage of pulmonary blood flow by a traveling clot or similar obstruction is

Accepted Answer

A)  emphysema. 
B)  COPD. 
C)  anoxia. 
D)  pulmonary embolism. 
E)  pneumothorax. 
A)  emphysema. 
B)  COPD. 
C)  anoxia. 
D)  pulmonary embolism. 
E)  pneumothorax.

Question 8

The common passageway shared by the respiratory and digestive systems is the

Accepted Answer

A)  larynx. 
B)  glottis. 
C)  vestibule. 
D)  pharynx. 
E)  trachea. 
A)  larynx. 
B)  glottis. 
C)  vestibule. 
D)  pharynx. 
E)  trachea.

Question 9

Roughly ________ terminal bronchioles arise from each segmental bronchus.

Accepted Answer

A)  1,500 
B)  3,000 
C)  6,500 
D)  10,000 
E)  100,000 
A)  1,500 
B)  3,000 
C)  6,500 
D)  10,000 
E)  100,000

Question 10

Asthma is

Accepted Answer

A)  a collapsed lung resulting from insufficient production of surfactant. 
B)  due to an excessive stimulation of smooth muscle in bronchioles. 
C)  an obstructive tumor targeting primarily the terminal bronchioles. 
D)  characterized by fluid buildup in the alveoli. 
E)  caused by Mycobacterium tuberculosis. 
A)  a collapsed lung resulting from insufficient production of surfactant. 
B)  due to an excessive stimulation of smooth muscle in bronchioles. 
C)  an obstructive tumor targeting primarily the terminal bronchioles. 
D)  characterized by fluid buildup in the alveoli. 
E)  caused by Mycobacterium tuberculosis.

Question 11

Air passing through the glottis vibrates the vocal folds and produces

Accepted Answer

A)  speech. 
B)  articulation. 
C)  phonation. 
D)  whistling. 
E)  ululation. 
A)  speech. 
B)  articulation. 
C)  phonation. 
D)  whistling. 
E)  ululation.

Question 12

Low partial pressure of oxygen in tissues is a condition called

Accepted Answer

A)  asthma. 
B)  emphysema. 
C)  hypoxia. 
D)  ischemia. 
E)  lung cancer. 
A)  asthma. 
B)  emphysema. 
C)  hypoxia. 
D)  ischemia. 
E)  lung cancer.

Question 13

Figure 23-2 Mechanics of Ventilation
  
Use Figure 23-2 to answer the following questions:
-What pressure will be present in the space labeled "4"?

Accepted Answer

A)  alveolar pressure 
B)  interpleural pressure 
C)  subalveolar pressure 
D)  intrapleural pressure 
E)  atmospheric pressure 
A)  alveolar pressure 
B)  interpleural pressure 
C)  subalveolar pressure 
D)  intrapleural pressure 
E)  atmospheric pressure

Question 14

The obstructive lung disease in which connective tissues are lost, alveolar surfaces are damaged, and therespiratory surface is reduced is called

Accepted Answer

A)  asthma. 
B)  bronchitis. 
C)  emphysema. 
D)  tuberculosis. 
E)  pneumonia. 
A)  asthma. 
B)  bronchitis. 
C)  emphysema. 
D)  tuberculosis. 
E)  pneumonia.

Question 15

If a patient inhales as deeply as possible and then exhales as much as possible, the volume of air expelled would be the patient's

Accepted Answer

A)  tidal volume. 
B)  inspiratory reserve volume. 
C)  expiratory reserve volume. 
D)  reserve volume. 
E)  vital capacity. 
A)  tidal volume. 
B)  inspiratory reserve volume. 
C)  expiratory reserve volume. 
D)  reserve volume. 
E)  vital capacity.

Question 16

If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally,

Accepted Answer

A)  a person would stop breathing. 
B)  pulmonary ventilation would increase markedly. 
C)  the respiratory minute volume would increase. 
D)  tidal volumes would decrease. 
E)  alveolar ventilation would increase. 
A)  a person would stop breathing. 
B)  pulmonary ventilation would increase markedly. 
C)  the respiratory minute volume would increase. 
D)  tidal volumes would decrease. 
E)  alveolar ventilation would increase.

Question 17

Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to

Accepted Answer

A)  changes in PCO2. 
B)  changes in PO2. 
C)  changes in pH. 
D)  changes in blood pressure. 
E)  changes in PCO2, PO2, and pH. 
A)  changes in PCO2. 
B)  changes in PO2. 
C)  changes in pH. 
D)  changes in blood pressure. 
E)  changes in PCO2, PO2, and pH.

Question 18

An important component of the lamina propria in the upper respiratory system is

Accepted Answer

A)  sweat glands. 
B)  ceruminous glands. 
C)  mucus glands. 
D)  serous glands. 
E)  smooth muscle cells. 
A)  sweat glands. 
B)  ceruminous glands. 
C)  mucus glands. 
D)  serous glands. 
E)  smooth muscle cells.

Question 19

Low pH alters hemoglobin structure so that oxygen binds less strongly to hemoglobin at low PO2. This increases the effectiveness of

Accepted Answer

A)  external respiration. 
B)  internal respiration. 
C)  carbon dioxide transport. 
D)  hemoglobin synthesis. 
E)  acid-base balance. 
A)  external respiration. 
B)  internal respiration. 
C)  carbon dioxide transport. 
D)  hemoglobin synthesis. 
E)  acid-base balance.

Question 20

In-Text Figure Based Questions
-How many lobes does each lung have, and which lung has a cardiac notch? (Figure 23-9)

Accepted Answer

A)  right lung has 2 lobes, the left lung has 3 lobes; the right lung has a cardiac notch 
B)  right lung has 3 lobes, the left lung has 2 lobes; the right lung has a cardiac notch 
C)  right lung has 2 lobes, the left lung has 3 lobes; the left lung has a cardiac notch 
D)  right lung has 3 lobes, the left lung has 2 lobes; the left lung has a cardiac notch 
E)  both lungs have 3 lobes, the left lung has a cardiac notch 
A)  right lung has 2 lobes, the left lung has 3 lobes; the right lung has a cardiac notch 
B)  right lung has 3 lobes, the left lung has 2 lobes; the right lung has a cardiac notch 
C)  right lung has 2 lobes, the left lung has 3 lobes; the left lung has a cardiac notch 
D)  right lung has 3 lobes, the left lung has 2 lobes; the left lung has a cardiac notch 
E)  both lungs have 3 lobes, the left lung has a cardiac notch

Exam 23: The Respiratory System

The ________ inhibit the apneustic centers and promote passive or active exhalation.

A 10 percent increase in the level of carbon dioxide in the blood will

A unique feature of the left lung is the

The term hypercapnia refers to

Henry's law states that

The nasal cavity is separated from the oral cavity by the

Blockage of pulmonary blood flow by a traveling clot or similar obstruction is

The common passageway shared by the respiratory and digestive systems is the

Roughly ________ terminal bronchioles arise from each segmental bronchus.

Asthma is

Air passing through the glottis vibrates the vocal folds and produces

Low partial pressure of oxygen in tissues is a condition called

Figure 23-2 Mechanics of Ventilation Use Figure 23-2 to answer the following questions: -What pressure will be present in the space labeled "4"?

The obstructive lung disease in which connective tissues are lost, alveolar surfaces are damaged, and therespiratory surface is reduced is called

If a patient inhales as deeply as possible and then exhales as much as possible, the volume of air expelled would be the patient's

If the dorsal respiratory group of neurons in the medulla oblongata were destroyed bilaterally,

Blocking afferent action potentials from the chemoreceptors in the carotid and aortic bodies would interfere with the brain's ability to regulate breathing in response to

An important component of the lamina propria in the upper respiratory system is

Low pH alters hemoglobin structure so that oxygen binds less strongly to hemoglobin at low PO2. This increases the effectiveness of

In-Text Figure Based Questions -How many lobes does each lung have, and which lung has a cardiac notch? (Figure 23-9)

An Introduction to Anatomy and Physiology

The Chemical Level of Organization

The Cellular Level of Organization

The Tissue Level of Organization

The Integumentary System

Bones and Bone Structure

The Axial Skeleton

The Appendicular Skeleton

Joints

Muscle Tissue

The Muscular System

Nervous Tissue

The Spinal Cord, Spinal Nerves, and Spinal Reflexes

The Brain and Cranial Nerves

Sensory Pathways and the Somatic Nervous System

The Autonomic Nervous System and Higher-Order Functions

The Special Senses

The Endocrine System

Blood

The Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

The Digestive System

Metabolism, Nutrition, and Energetics

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Development and Inheritance

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