Question 1

Which respiratory- associated muscles would contract if you were to blow up a balloon?

Accepted Answer

A)  internal intercostals and abdominal muscles would contract 
B)  external intercostals would contract and diaphragm would relax 
C)  diaphragm would contract, external intercostals would relax 
D)  diaphragm contracts, internal intercostals would relax 
A)  internal intercostals and abdominal muscles would contract 
B)  external intercostals would contract and diaphragm would relax 
C)  diaphragm would contract, external intercostals would relax 
D)  diaphragm contracts, internal intercostals would relax

Question 2

While having a physical examination, a young male informed his doctor that at age 8 he had lobar pneumonia and pleurisy in his left lung. The physician decided to measure his VC. Describe the apparatus and method used for taking this measurement. Define the following terms used in the description of lung volumes: TV, IRV, ERV, RV, and VC.

Accepted Answer

His vital capacity (VC) was measured usi

Question 3

Which of the following is not a stimulus for breathing?

Accepted Answer

A)  arterial PO2 below 60 mm Hg 
B)  acidosis resulting from CO2 retention 
C)  rising carbon dioxide levels 
D)  rising blood pressure 
A)  arterial PO2 below 60 mm Hg 
B)  acidosis resulting from CO2 retention 
C)  rising carbon dioxide levels 
D)  rising blood pressure

Question 4

The law of partial pressure is called

Accepted Answer

The answer of The law of partial pressure is called...

Question 5

Labored breathing is termed dyspnea.

Accepted Answer

A) True 
 B)False

Question 6

The respiratory membrane is a combination of _.

Accepted Answer

A)  atria and alveolar sacs 
B)  respiratory bronchioles and alveolar ducts 
C)  alveolar and capillary walls and their fused basement membranes 
D)  respiratory bronchioles and alveolar sacs 
A)  atria and alveolar sacs 
B)  respiratory bronchioles and alveolar ducts 
C)  alveolar and capillary walls and their fused basement membranes 
D)  respiratory bronchioles and alveolar sacs

Question 7

The olfactory mucosal lining of the nasal cavity contains the receptors for the sense of smell.

Accepted Answer

A) True 
 B)False

Question 8

Which of the following provide the greatest surface area for gas exchange?

Accepted Answer

A)  alveolar ducts 
B)  alveolar sacs 
C)  respiratory bronchioles 
D)  alveoli 
A)  alveolar ducts 
B)  alveolar sacs 
C)  respiratory bronchioles 
D)  alveoli

Question 9

Select the correct statement about the physical factors influencing pulmonary ventilation.

Accepted Answer

A)  A decrease in compliance causes an increase in ventilation. 
B)  As alveolar surface tension increases, additional muscle action will be required. 
C)  A lung that is less elastic will require less muscle action to perform adequate ventilation. 
D)  Surfactant helps increase alveolar surface tension. 
A)  A decrease in compliance causes an increase in ventilation. 
B)  As alveolar surface tension increases, additional muscle action will be required. 
C)  A lung that is less elastic will require less muscle action to perform adequate ventilation. 
D)  Surfactant helps increase alveolar surface tension.

Question 10

Which statement about CO2 is incorrect?

Accepted Answer

A)  Its accumulation in the blood is associated with a decrease in pH. 
B)  Its concentration in the blood is decreased by hyperventilation. 
C)  CO2 concentrations are greater in venous blood than arterial blood. 
D)  More CO2 dissolves in the blood plasma than is carried in the RBCs. 
A)  Its accumulation in the blood is associated with a decrease in pH. 
B)  Its concentration in the blood is decreased by hyperventilation. 
C)  CO2 concentrations are greater in venous blood than arterial blood. 
D)  More CO2 dissolves in the blood plasma than is carried in the RBCs.

Question 11

Which of the choices below is not a factor that promotes oxygen binding to and dissociation from hemoglobin?

Accepted Answer

A)  partial pressure of carbon dioxide 
B)  temperature 
C)  partial pressure of oxygen 
D)  number of red blood cells 
A)  partial pressure of carbon dioxide 
B)  temperature 
C)  partial pressure of oxygen 
D)  number of red blood cells

Question 12

While dining out in a restaurant a man suddenly chokes on a piece of meat. The waitress is also a student nurse and comes to the man's aid. She asks him if he can talk. The man responds by shaking his head no and grabbing at his neck. What is the significance of the man's inability to talk?

Accepted Answer

Speech involves the intermittent release

Question 13

The contraction of the diaphragm and the external intercostal muscles begins inspiration. Explain exactly what happens, in terms of volume and pressure changes in the lungs, when these muscles contract.

Accepted Answer

With contraction of the diaphragm, the h

Question 14

Distinguish among anemic, ischemic, histotoxic, and hypoxemic hypoxia.

Accepted Answer

Anemic hypoxia reflects poor oxygen deli

Question 15

Oxygenated hemoglobin releases oxygen more readily when the pH is more basic.

Accepted Answer

A) True 
 B)False

Question 16

Valsalva's maneuver involves closing off the glottis (preventing expiration) while contracting the muscles of expiration, causing an increase in intra- abdominal pressure.

Accepted Answer

A) True 
 B)False

Question 17

The lung volume that represents the total volume of exchangeable air is the .

Accepted Answer

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

Question 18

Which of the following statements is true regarding the respiratory rate of a newborn?

Accepted Answer

A)  The respiratory rate of a newborn is approximately 30 respirations per minute. 
B)  The respiratory rate of a newborn is, at its highest rate, approximately 40- 80 respirations per minute. 
C)  The respiratory rate of a newborn varies between male and female infants. 
D)  The respiratory rate of a newborn is slow. 
A)  The respiratory rate of a newborn is approximately 30 respirations per minute. 
B)  The respiratory rate of a newborn is, at its highest rate, approximately 40- 80 respirations per minute. 
C)  The respiratory rate of a newborn varies between male and female infants. 
D)  The respiratory rate of a newborn is slow.

Question 19

The loudness of a person's voice depends on the .

Accepted Answer

A)  strength of the intrinsic laryngeal muscles 
B)  thickness of vestibular folds 
C)  force with which air rushes across the vocal folds 
D)  length of the vocal folds 
A)  strength of the intrinsic laryngeal muscles 
B)  thickness of vestibular folds 
C)  force with which air rushes across the vocal folds 
D)  length of the vocal folds

Question 20

How is it possible to change the pitch of our voice from high to low?

Accepted Answer

Usually, the tenser the vocal folds, the

Exam 22: The Respiratory System

Which respiratory- associated muscles would contract if you were to blow up a balloon?

Which of the following is not a stimulus for breathing?

The law of partial pressure is called

Labored breathing is termed dyspnea.

The respiratory membrane is a combination of _.

The olfactory mucosal lining of the nasal cavity contains the receptors for the sense of smell.

Which of the following provide the greatest surface area for gas exchange?

Select the correct statement about the physical factors influencing pulmonary ventilation.

Which statement about CO2 is incorrect?

Which of the choices below is not a factor that promotes oxygen binding to and dissociation from hemoglobin?

While dining out in a restaurant a man suddenly chokes on a piece of meat. The waitress is also a student nurse and comes to the man's aid. She asks him if he can talk. The man responds by shaking his head no and grabbing at his neck. What is the significance of the man's inability to talk?

The contraction of the diaphragm and the external intercostal muscles begins inspiration. Explain exactly what happens, in terms of volume and pressure changes in the lungs, when these muscles contract.

Distinguish among anemic, ischemic, histotoxic, and hypoxemic hypoxia.

Oxygenated hemoglobin releases oxygen more readily when the pH is more basic.

Valsalva's maneuver involves closing off the glottis (preventing expiration) while contracting the muscles of expiration, causing an increase in intra- abdominal pressure.

The lung volume that represents the total volume of exchangeable air is the .

Which of the following statements is true regarding the respiratory rate of a newborn?

The loudness of a person's voice depends on the .

How is it possible to change the pitch of our voice from high to low?

The Human Body: an Orientation

Chemistry Comes Alive

Cells: the Living Units

Tissue: the Living Fabric

The Integumentary System

Bones and Skeletal Tissues

The Skeleton

Joints

Muscles and Muscle Tissue

The Muscular System

Fundamentals of the Nervous System and Nervous Tissue

The Central Nervous System

The Peripheral Nervous System and Reflex Activity

The Autonomic Nervous System

The Special Senses

The Endocrine System

Blood

The Cardiovascular System: the Heart

The Cardiovascular System: Blood Vessels

The Lymphatic System and Lymphoid Organs and Tissues

The Immune System: Innate and Adaptive Body Defensives

The Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

The Urinary System

Fluid, Electrolyte, and Acid-Base Balance

The Reproductive System

Pregnancy and Human Development

Heredity

Filters

Which statement about CO₂ is incorrect?