Question 1

The physical movement of air into and out of lungs is termed

Accepted Answer

A)  external respiration. 
B)  internal respiration. 
C)  cellular respiration. 
D)  pulmonary ventilation. 
E)  gas diffusion. 
A)  external respiration. 
B)  internal respiration. 
C)  cellular respiration. 
D)  pulmonary ventilation. 
E)  gas diffusion. D

Question 2

What is hypercapnia? How does it affect respiration? What are common causes?

Accepted Answer

Hypercapnia refers to a condition of elevated partial pressure of carbon dioxide. This rise is detected by chemoreceptors in the aortic and carotid bodies and powerfully stimulates ventilation through effects on pontine nuclei. Hypercapnia results from increased production as during exercise or reduced elimination as in reduced alveolar ventilation.

Question 3

What occurs if intrapulmonic pressure is 763 mm Hg?

Accepted Answer

A)  hyperventilation 
B)  exhalation 
C)  pause in breathing 
D)  apnea 
E)  inhalation 
A)  hyperventilation 
B)  exhalation 
C)  pause in breathing 
D)  apnea 
E)  inhalation B

Question 4

The function of pulmonary ventilation is to

Accepted Answer

A)  remove carbon dioxide from the blood. 
B)  supply oxygen to the blood. 
C)  maintain adequate alveolar ventilation. 
D)  remove air from dead air space. 
E)  prevent gas exchange in the bronchioles. 
A)  remove carbon dioxide from the blood. 
B)  supply oxygen to the blood. 
C)  maintain adequate alveolar ventilation. 
D)  remove air from dead air space. 
E)  prevent gas exchange in the bronchioles.

Question 5

Alveolar ventilation refers to the

Accepted Answer

A)  movement of air into and out of the lungs. 
B)  movement of air into and out of the alveoli. 
C)  movement of dissolved gases from the alveoli to the blood. 
D)  movement of dissolved gases from the blood to the alveoli. 
E)  utilization of oxygen by alveolar cells to support metabolism. 
A)  movement of air into and out of the lungs. 
B)  movement of air into and out of the alveoli. 
C)  movement of dissolved gases from the alveoli to the blood. 
D)  movement of dissolved gases from the blood to the alveoli. 
E)  utilization of oxygen by alveolar cells to support metabolism.

Question 6

Figure 23-1 The Upper Airways
  
Use Figure 23-1 to answer the following questions:
-What is the function of the structure labeled "8"?

Accepted Answer

A)  forces air into the lungs 
B)  causes air to swirl within the respiratory passageway 
C)  prevents food from entering the larynx 
D)  acts like a supplementary air pump 
E)  adjusts tension of vocal folds 
A)  forces air into the lungs 
B)  causes air to swirl within the respiratory passageway 
C)  prevents food from entering the larynx 
D)  acts like a supplementary air pump 
E)  adjusts tension of vocal folds

Question 7

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver getdecompression sickness?

Accepted Answer

A)  Pressure decreases and carbon dioxide rushes into cells. 
B)  Pressure changes too fast and the carbon dioxide in the blood forms bubbles. 
C)  Pressure decreases too fast and nitrogen gas in the blood forms bubbles. 
D)  The gas in the SCUBA tank had too much pressure and rapid ascent forces too much air into the blood. 
E)  Pressure increases too fast and too much oxygen enters the blood and forms bubbles. 
A)  Pressure decreases and carbon dioxide rushes into cells. 
B)  Pressure changes too fast and the carbon dioxide in the blood forms bubbles. 
C)  Pressure decreases too fast and nitrogen gas in the blood forms bubbles. 
D)  The gas in the SCUBA tank had too much pressure and rapid ascent forces too much air into the blood. 
E)  Pressure increases too fast and too much oxygen enters the blood and forms bubbles.

Question 8

The nasal cavity opens into the nasopharynx through a connection known as the

Accepted Answer

A)  oropharynx. 
B)  nasal meatus. 
C)  nasal vestibule. 
D)  internal nares. 
E)  auditory canal. 
A)  oropharynx. 
B)  nasal meatus. 
C)  nasal vestibule. 
D)  internal nares. 
E)  auditory canal.

Question 9

The percent of oxygen saturation of hemoglobin when the temperature is 38 degrees centigrade is

Accepted Answer

A)  greater than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
B)  less than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
C)  equal to the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
D)  equal to the percent of oxygen saturation of hemoglobin when the temperature is 20 degrees centigrade. 
E)  equal to the percent of oxygen saturation of hemoglobin when BPG levels are high. 
A)  greater than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
B)  less than the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
C)  equal to the percent of oxygen saturation of hemoglobin when the temperature is 43 degrees centigrade. 
D)  equal to the percent of oxygen saturation of hemoglobin when the temperature is 20 degrees centigrade. 
E)  equal to the percent of oxygen saturation of hemoglobin when BPG levels are high.

Question 10

Anewborn infant is found dead, abandoned by the road. Among the many questions that the police would like answered is whether the infant was stillborn. How could the medical examiner tell?

Accepted Answer

If the infant had been born alive, his o

Question 11

Respiratory function deteriorates as a result of pneumonia because inflammation

Accepted Answer

A)  causes fluids to leak into the alveoli. 
B)  causes respiratory bronchioles to swell and dilate. 
C)  causes the lungs to leak air into the thorax. 
D)  reduces movement of the epiglottis. 
E)  reduces the size of the pleural cavity. 
A)  causes fluids to leak into the alveoli. 
B)  causes respiratory bronchioles to swell and dilate. 
C)  causes the lungs to leak air into the thorax. 
D)  reduces movement of the epiglottis. 
E)  reduces the size of the pleural cavity.

Question 12

Total alveolar surface area is reduced in

Accepted Answer

A)  lung cancer. 
B)  atelectasis. 
C)  emphysema. 
D)  pneumothorax. 
E)  asthma. 
A)  lung cancer. 
B)  atelectasis. 
C)  emphysema. 
D)  pneumothorax. 
E)  asthma.

Question 13

During inhalation, air continues to move into the lungs until

Accepted Answer

A)  the internal pressure is the same is atmospheric pressure. 
B)  the internal pressure is less than atmospheric pressure. 
C)  the internal pressure is greater than atmospheric pressure. 
D)  the compliance of the lung decreases. 
E)  the lungs recoil. 
A)  the internal pressure is the same is atmospheric pressure. 
B)  the internal pressure is less than atmospheric pressure. 
C)  the internal pressure is greater than atmospheric pressure. 
D)  the compliance of the lung decreases. 
E)  the lungs recoil.

Question 14

During exercise, which of the following contract for active exhalation?

Accepted Answer

A)  rectus abdominis and internal intercostal muscles 
B)  diaphragm and internal intercostal muscles 
C)  rectus abdominis and diaphragm muscles 
D)  diaphragm and external intercostal muscles 
E)  pectoralis major and serratus anterior muscles 
A)  rectus abdominis and internal intercostal muscles 
B)  diaphragm and internal intercostal muscles 
C)  rectus abdominis and diaphragm muscles 
D)  diaphragm and external intercostal muscles 
E)  pectoralis major and serratus anterior muscles

Question 15

The respiratory portion of the respiratory tract includes the

Accepted Answer

A)  bronchi. 
B)  trachea. 
C)  larynx. 
D)  alveoli. 
E)  nose. 
A)  bronchi. 
B)  trachea. 
C)  larynx. 
D)  alveoli. 
E)  nose.

Question 16

The palatine tonsils lie in the walls of the

Accepted Answer

A)  nasopharynx. 
B)  oropharynx. 
C)  laryngopharynx. 
D)  larynx. 
E)  nasal cavity. 
A)  nasopharynx. 
B)  oropharynx. 
C)  laryngopharynx. 
D)  larynx. 
E)  nasal cavity.

Question 17

Factors affecting the release of oxygen from hemoglobin can be visualized by using a

Accepted Answer

A)  spirograph. 
B)  pulmonary volume chart. 
C)  respiratory cycle chart. 
D)  oxygen-hemoglobin saturation curve. 
E)  blood gas analysis. 
A)  spirograph. 
B)  pulmonary volume chart. 
C)  respiratory cycle chart. 
D)  oxygen-hemoglobin saturation curve. 
E)  blood gas analysis.

Question 18

When the diaphragm and external intercostal muscles contract,

Accepted Answer

A)  the volume of the thorax increases. 
B)  the volume of the thorax decreases. 
C)  the volume of the lungs decreases. 
D)  the lungs shrink. 
E)  expiration occurs. 
A)  the volume of the thorax increases. 
B)  the volume of the thorax decreases. 
C)  the volume of the lungs decreases. 
D)  the lungs shrink. 
E)  expiration occurs.

Question 19

The partial pressure of carbon dioxide in venous blood is approximately

Accepted Answer

A)  40 mm Hg. 
B)  45 mm Hg. 
C)  50 mm Hg. 
D)  70 mm Hg. 
E)  100 mm Hg. 
A)  40 mm Hg. 
B)  45 mm Hg. 
C)  50 mm Hg. 
D)  70 mm Hg. 
E)  100 mm Hg.

Question 20

The effect of pH on hemoglobin saturation is known as the

Accepted Answer

A)  Bainbridge reflex. 
B)  Bohr effect. 
C)  pulmonary reflex. 
D)  respiratory effect. 
E)  Hering-Breuer reflex. 
A)  Bainbridge reflex. 
B)  Bohr effect. 
C)  pulmonary reflex. 
D)  respiratory effect. 
E)  Hering-Breuer reflex.

Exam 23: The Respiratory System

The physical movement of air into and out of lungs is termed

What is hypercapnia? How does it affect respiration? What are common causes?

What occurs if intrapulmonic pressure is 763 mm Hg?

The function of pulmonary ventilation is to

Alveolar ventilation refers to the

Figure 23-1 The Upper Airways Use Figure 23-1 to answer the following questions: -What is the function of the structure labeled "8"?

A SCUBA diver has been deep underwater and suddenly rises to the surface too fast. Why does the diver getdecompression sickness?

The nasal cavity opens into the nasopharynx through a connection known as the

The percent of oxygen saturation of hemoglobin when the temperature is 38 degrees centigrade is

Anewborn infant is found dead, abandoned by the road. Among the many questions that the police would like answered is whether the infant was stillborn. How could the medical examiner tell?

Respiratory function deteriorates as a result of pneumonia because inflammation

Total alveolar surface area is reduced in

During inhalation, air continues to move into the lungs until

During exercise, which of the following contract for active exhalation?

The respiratory portion of the respiratory tract includes the

The palatine tonsils lie in the walls of the

Factors affecting the release of oxygen from hemoglobin can be visualized by using a

When the diaphragm and external intercostal muscles contract,

The partial pressure of carbon dioxide in venous blood is approximately

The effect of pH on hemoglobin saturation is known as the

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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