Question 1

What is the effect of an overdose of an opioid (narcotic)?

Accepted Answer

A) Alters the shape of the hemoglobin so that it cannot bind to oxygen 
B) Depresses the medulla oblongata and depresses ventilation 
C) Causes spasm of the epiglottis resulting in an upper airway obstruction 
D) Causes hyperventilation and alkalosis 
A) Alters the shape of the hemoglobin so that it cannot bind to oxygen 
B) Depresses the medulla oblongata and depresses ventilation 
C) Causes spasm of the epiglottis resulting in an upper airway obstruction 
D) Causes hyperventilation and alkalosis B

Question 2

A deficiency of surfactants in the neonate

Accepted Answer

A) makes it difficult to expand the lungs. 
B) decreases alveolar surface tension. 
C) causes epiglottal swelling and laryngospasm. 
D) causes upper airway irritation. 
A) makes it difficult to expand the lungs. 
B) decreases alveolar surface tension. 
C) causes epiglottal swelling and laryngospasm. 
D) causes upper airway irritation. A

Question 3

Contraction and relaxation of the diaphragm and intercostal muscles

Accepted Answer

A) change thoracic volume. 
B) close the glottis. 
C) occur in response to firing of the vagus nerve. 
D) All of the above are true. 
A) change thoracic volume. 
B) close the glottis. 
C) occur in response to firing of the vagus nerve. 
D) All of the above are true. A

Question 4

At which point in the respiratory cycle is thoracic volume the smallest?

Accepted Answer

A) At end inhalation 
B) With contraction of the diaphragm 
C) With contraction of the external intercostals 
D) At end of exhalation 
A) At end inhalation 
B) With contraction of the diaphragm 
C) With contraction of the external intercostals 
D) At end of exhalation

Question 5

Which group is incorrect?

Accepted Answer

A) Structures of the bronchial tree: trachea,bronchi,bronchioles,alveoli 
B) Paranasal sinuses: frontal,maxillary,sphenoidal,ethmoidal 
C) Structures of the upper respiratory tract: trachea,pharynx,larynx 
D) Parts of the pharynx: oropharynx,nasopharynx,laryngopharynx 
A) Structures of the bronchial tree: trachea,bronchi,bronchioles,alveoli 
B) Paranasal sinuses: frontal,maxillary,sphenoidal,ethmoidal 
C) Structures of the upper respiratory tract: trachea,pharynx,larynx 
D) Parts of the pharynx: oropharynx,nasopharynx,laryngopharynx

Question 6

The water molecule is polar,meaning that each end of the molecule has an electrical charge.Because of this characteristic,water

Accepted Answer

A) has a high surface tension. 
B) can only dissolve lipids. 
C) is a poor solvent. 
D) is lipid-soluble. 
A) has a high surface tension. 
B) can only dissolve lipids. 
C) is a poor solvent. 
D) is lipid-soluble.

Question 7

Hypoventilation decreases the respiratory excretion of

Accepted Answer

A) oxygen. 
B) water. 
C) carbon dioxide. 
D) albumin. 
A) oxygen. 
B) water. 
C) carbon dioxide. 
D) albumin.

Question 8

When the muscles of respiration relax,

Accepted Answer

A) thoracic volume decreases and air moves out of the lungs. 
B) thoracic volume increases and air moves out of the lung. 
C) thoracic volume decreases and air moves into the lungs. 
D) thoracic volume decreases and intrapulmonic pressure decreases. 
A) thoracic volume decreases and air moves out of the lungs. 
B) thoracic volume increases and air moves out of the lung. 
C) thoracic volume decreases and air moves into the lungs. 
D) thoracic volume decreases and intrapulmonic pressure decreases.

Question 9

Dyspnea means

Accepted Answer

A) "puffed up" alveoli. 
B) pneumonia. 
C) cyanosis. 
D) difficulty breathing. 
A) "puffed up" alveoli. 
B) pneumonia. 
C) cyanosis. 
D) difficulty breathing.

Question 10

Which group is incorrect?

Accepted Answer

A) Pulmonary volumes: tidal,inspiratory reserve,expiratory reserve 
B) Structures of the bronchial tree: bronchi,bronchioles,alveoli 
C) Respiratory gases: oxygen,carbon dioxide 
D) Parts of the pharynx: oropharynx,nasopharynx,laryngopharynx,bronchiopharynx 
A) Pulmonary volumes: tidal,inspiratory reserve,expiratory reserve 
B) Structures of the bronchial tree: bronchi,bronchioles,alveoli 
C) Respiratory gases: oxygen,carbon dioxide 
D) Parts of the pharynx: oropharynx,nasopharynx,laryngopharynx,bronchiopharynx

Question 11

Which of the following is true of the lower respiratory tract?

Accepted Answer

A) Contains the respiratory organs in the chest 
B) Contains all respiratory organs 
C) Contains all respiratory structures lined with mucous membrane 
D) Contains all organs distal to the larynx 
A) Contains the respiratory organs in the chest 
B) Contains all respiratory organs 
C) Contains all respiratory structures lined with mucous membrane 
D) Contains all organs distal to the larynx

Question 12

What causes a boy's voice to "break" or change at the onset of puberty?

Accepted Answer

A) Rapid growth of the throat region stretches the vocal cords. 
B) Testosterone causes the vocal cords to thicken. 
C) Testosterone closes the glottis permanently. 
D) Testosterone enlarges the thyroid cartilage (Adam's apple). 
A) Rapid growth of the throat region stretches the vocal cords. 
B) Testosterone causes the vocal cords to thicken. 
C) Testosterone closes the glottis permanently. 
D) Testosterone enlarges the thyroid cartilage (Adam's apple).

Question 13

Which of the following best describes the visceral and parietal pleura?

Accepted Answer

A) Line the inner wall of the trachea and bronchi 
B) Line the mediastinum 
C) Are serous membranes that line the pleural cavity 
D) Are surfactant-secreting membranes 
A) Line the inner wall of the trachea and bronchi 
B) Line the mediastinum 
C) Are serous membranes that line the pleural cavity 
D) Are surfactant-secreting membranes

Question 14

A stab wound to the chest causes the lung to collapse because

Accepted Answer

A) of a sudden increase in surface tension. 
B) intrapulmonic pressure becomes less than atmospheric pressure. 
C) intrapulmonic pressure becomes higher than intrapleural pressure. 
D) intrapleural pressure becomes greater than intrapulmonic pressure. 
A) of a sudden increase in surface tension. 
B) intrapulmonic pressure becomes less than atmospheric pressure. 
C) intrapulmonic pressure becomes higher than intrapleural pressure. 
D) intrapleural pressure becomes greater than intrapulmonic pressure.

Question 15

The trachea is

Accepted Answer

A) "the problem" in asthma. 
B) the site of gas exchange. 
C) composed primarily of smooth muscle. 
D) a large airway that splits into two bronchi. 
A) "the problem" in asthma. 
B) the site of gas exchange. 
C) composed primarily of smooth muscle. 
D) a large airway that splits into two bronchi.

Question 16

Which respiratory structure is distal to the trachea and proximal to the alveoli?

Accepted Answer

A) Pharynx 
B) Larynx 
C) Bronchus 
D) Glottis 
A) Pharynx 
B) Larynx 
C) Bronchus 
D) Glottis

Question 17

Boyle's law forms the basis of

Accepted Answer

A) ventilation. 
B) chemical regulation of breathing. 
C) oxygen transport in the blood. 
D) carbon dioxide transport in the blood. 
A) ventilation. 
B) chemical regulation of breathing. 
C) oxygen transport in the blood. 
D) carbon dioxide transport in the blood.

Question 18

Central and peripheral chemoreceptors (aortic and carotid bodies)

Accepted Answer

A) are responsive only to hypoxemia. 
B) are both sensitive to [H+] concentrations. 
C) can regulate the rate and depth of respirations. 
D) More than one of the above are true. 
A) are responsive only to hypoxemia. 
B) are both sensitive to [H+] concentrations. 
C) can regulate the rate and depth of respirations. 
D) More than one of the above are true.

Question 19

Cartilaginous rings

Accepted Answer

A) prevent the collapse of the trachea. 
B) surround each alveolus. 
C) are innervated by the phrenic nerve. 
D) attach the diaphragm to the thoracic wall. 
A) prevent the collapse of the trachea. 
B) surround each alveolus. 
C) are innervated by the phrenic nerve. 
D) attach the diaphragm to the thoracic wall.

Question 20

Because of their smooth muscle content,_____________ are the primary determinants of air flow.

Accepted Answer

A) trachea 
B) bronchi 
C) alveoli 
D) bronchioles 
A) trachea 
B) bronchi 
C) alveoli 
D) bronchioles

Exam 22: Respiratory System

What is the effect of an overdose of an opioid (narcotic)?

A deficiency of surfactants in the neonate

Contraction and relaxation of the diaphragm and intercostal muscles

At which point in the respiratory cycle is thoracic volume the smallest?

Which group is incorrect?

The water molecule is polar,meaning that each end of the molecule has an electrical charge.Because of this characteristic,water

Hypoventilation decreases the respiratory excretion of

When the muscles of respiration relax,

Dyspnea means

Which group is incorrect?

Which of the following is true of the lower respiratory tract?

What causes a boy's voice to "break" or change at the onset of puberty?

Which of the following best describes the visceral and parietal pleura?

A stab wound to the chest causes the lung to collapse because

The trachea is

Which respiratory structure is distal to the trachea and proximal to the alveoli?

Boyle's law forms the basis of

Central and peripheral chemoreceptors (aortic and carotid bodies)

Cartilaginous rings

Because of their smooth muscle content,_____________ are the primary determinants of air flow.

Introduction to the Human Body

Basic Chemistry

Cells

Cell Metabolism

Microbiology Basics

Tissues and Membranes

Integumentary System and Body Temperature

Skeletal System

Muscular System

Nervous System: Nervous Tissue and Brain

Nervous System: Spinal Cord and Peripheral Nerves

Autonomic Nervous System

Sensory System

Endocrine System

Blood

Anatomy of the Heart

Function of the Heart

Anatomy of the Blood Vessels and Special Circulations

Functions of the Blood Vessels

Lymphatic System

Immune System

Digestive System

Urinary System

Water, Electrolyte, and Acidbase Balance

Reproductive Systems

Human Development and Heredity

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