Question 1

A nurse recalls the pleural membranes are examples of _____ membranes.

Accepted Answer

A)  mucous 
B)  serous 
C)  synovial 
D)  peritoneal 
A)  mucous 
B)  serous 
C)  synovial 
D)  peritoneal

Question 2

Diffusion of respiratory gases takes place at the:

Accepted Answer

A)  alveolocapillary membrane. 
B)  visceral pleurae. 
C)  parietal pleurae. 
D)  respiratory center. 
A)  alveolocapillary membrane. 
B)  visceral pleurae. 
C)  parietal pleurae. 
D)  respiratory center.

Question 3

The pressure required to inflate an alveolus is inversely related to:

Accepted Answer

A)  wall thickness. 
B)  surface tension. 
C)  minute volume. 
D)  alveolar radius. 
A)  wall thickness. 
B)  surface tension. 
C)  minute volume. 
D)  alveolar radius.

Question 4

The nurse is describing the slit-shaped space between the true vocal cords.What term should the nurse use?

Accepted Answer

A)  Glottis 
B)  Epiglottis 
C)  Larynx 
D)  Carina 
A)  Glottis 
B)  Epiglottis 
C)  Larynx 
D)  Carina

Question 5

A nurse remembers the majority of total airway resistance occurs in the:

Accepted Answer

A)  bronchi. 
B)  nose. 
C)  oral pharynx. 
D)  diaphragm. 
A)  bronchi. 
B)  nose. 
C)  oral pharynx. 
D)  diaphragm.

Question 6

Pulmonary function tests reveal that an 80-year-old dyspneic patient has an increase in residual volume.A nurse suspects the most likely cause of the increased residual volume is _____ in lung compliance.

Accepted Answer

A)  an increase 
B)  a decrease 
C)  no change 
D)  an absence 
A)  an increase 
B)  a decrease 
C)  no change 
D)  an absence

Question 7

A patient asks how oxygen is transported in the body.The nurse's best response is that most oxygen (O2) is transported:

Accepted Answer

A)  dissolved in the plasma. 
B)  bound to hemoglobin. 
C)  in the form of carbon dioxide (CO2). 
D)  as a free-floating molecule. 
A)  dissolved in the plasma. 
B)  bound to hemoglobin. 
C)  in the form of carbon dioxide (CO2). 
D)  as a free-floating molecule.

Question 8

The nasopharynx is lined with a ciliated mucosal membrane with a highly vascular blood supply.One function of this membrane is to:

Accepted Answer

A)  absorb air. 
B)  humidify air. 
C)  cool air. 
D)  exchange gases. 
A)  absorb air. 
B)  humidify air. 
C)  cool air. 
D)  exchange gases.

Question 9

A newborn is in respiratory distress and requires ventilation.Tests reveal that he does not produce surfactant due to the absence of:

Accepted Answer

A)  mucus-producing cells. 
B)  type II alveolar cells. 
C)  alveolar macrophages. 
D)  goblet cells. 
A)  mucus-producing cells. 
B)  type II alveolar cells. 
C)  alveolar macrophages. 
D)  goblet cells.

Question 10

A patient is experiencing respiratory difficulty and retaining too much carbon dioxide.Which receptor sites would be stimulated in an attempt to maintain a normal homeostatic state?

Accepted Answer

A)  Irritant 
B)  Stretch 
C)  Peripheral 
D)  Central 
A)  Irritant 
B)  Stretch 
C)  Peripheral 
D)  Central

Question 11

_____ seconds is required for oxygen (O2) concentration to equilibrate (equalize) across the alveolocapillary membrane.

Accepted Answer

Question 12

What is the partial pressure of oxygen in the lung given the following conditions? Percentage of oxygen in air: 20
Barometric pressure: 700 mm Hg

Accepted Answer

A)  111 mm Hg 
B)  124 mm Hg 
C)  131 mm Hg 
D)  140 mm Hg 
A)  111 mm Hg 
B)  124 mm Hg 
C)  131 mm Hg 
D)  140 mm Hg

Exam 28: Structure and Function of the Pulmonary System

A nurse recalls the pleural membranes are examples of _____ membranes.

Diffusion of respiratory gases takes place at the:

The pressure required to inflate an alveolus is inversely related to:

The nurse is describing the slit-shaped space between the true vocal cords.What term should the nurse use?

A nurse remembers the majority of total airway resistance occurs in the:

Pulmonary function tests reveal that an 80-year-old dyspneic patient has an increase in residual volume.A nurse suspects the most likely cause of the increased residual volume is _____ in lung compliance.

A patient asks how oxygen is transported in the body.The nurse's best response is that most oxygen (O2) is transported:

The nasopharynx is lined with a ciliated mucosal membrane with a highly vascular blood supply.One function of this membrane is to:

A newborn is in respiratory distress and requires ventilation.Tests reveal that he does not produce surfactant due to the absence of:

A patient is experiencing respiratory difficulty and retaining too much carbon dioxide.Which receptor sites would be stimulated in an attempt to maintain a normal homeostatic state?

_____ seconds is required for oxygen (O2) concentration to equilibrate (equalize) across the alveolocapillary membrane.

What is the partial pressure of oxygen in the lung given the following conditions? Percentage of oxygen in air: 20 Barometric pressure: 700 mm Hg

Cellular Biology

Genes and Genetic Diseases

Epigenetics and Disease

Altered Cellular and Tissue Biology

Fluids and Electrolytes, Acids and Bases

Innate Immunity: Inflammation and Wound Healing

Adaptive Immunity

Disorders of the Central and Peripheral Nervous Systems and Neuromuscular Junction

Alterations in Immunity

Infection and Defects in Mechanisms of Defense

Stress and Disease

Biology of Cancer

Cancer Epidemiology

Cancer in Children and Adolescents

Structure and Function of the Neurologic System

Pain, Temperature, Sleep, and Sensory Function

Alterations in Cognitive Systems, Cerebral Hemodynamics, and Motor Function

Mechanisms of Hormonal Regulation

Alterations of Hormonal Regulation

Obesity and Disorders of Nutrition

Structure and Function of the Hematologic System

Alterations of Hematologic Function

Alterations of Hematologic Function in Children

Structure and Function of the Cardiovascular and Lymphatic Systems

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function in Children

Alterations of Pulmonary Function

Alterations of Pulmonary Function in Children

Structure and Function of the Renal and Urologic Systems

Alterations of Renal and Urinary Tract Function

Alterations of Renal and Urinary Tract Function in Children

Structure and Function of the Reproductive Systems

Alterations of the Female Reproductive System

Alterations of the Male Reproductive System

Structure and Function of the Digestive System

Alterations of Digestive Function

Alterations of Digestive Function in Children

Structure and Function of the Musculoskeletal System

Alterations of Musculoskeletal Function

Alterations of Musculoskeletal Function in Children

Structure, Function, and Disorders of the Integument

Alterations of the Integument in Children

Alterations of Neurologic Function in Children

Filters

A patient asks how oxygen is transported in the body.The nurse's best response is that most oxygen (O₂) is transported:

_____ seconds is required for oxygen (O₂) concentration to equilibrate (equalize) across the alveolocapillary membrane.