Question 1

The pharynx is an enlargement at the top of the trachea that houses the vocal cords.

Accepted Answer

A) True 
 B)False  False

Question 2

A simple spirometer cannot measure which of the following air volumes?

Accepted Answer

A)  Tidal volume 
B)  Vital capacity 
C)  Residual volume 
D)  Expiratory reserve volume 
A)  Tidal volume 
B)  Vital capacity 
C)  Residual volume 
D)  Expiratory reserve volume C

Question 3

The inflation reflex is activated when stretch receptors are stimulated during inspiration.

Accepted Answer

A) True 
 B)False  True

Question 4

Exposure to secondhand smoke increases risk of

Accepted Answer

A)  damage to the smooth endothelial lining of blood vessels. 
B)  platelet activation 
C)  abnormal blood clotting. 
D)  all of the above. 
A)  damage to the smooth endothelial lining of blood vessels. 
B)  platelet activation 
C)  abnormal blood clotting. 
D)  all of the above.

Question 5

Oxygen plays a minor role in the control of normal respiration because

Accepted Answer

A)  oxygenated blood is 2. 
D)  deoxygenated venous blood is 75% saturated. 
A)  oxygenated blood is 2. 
D)  deoxygenated venous blood is 75% saturated.

Question 6

Peripheral receptors stimulate the respiratory areas, resulting in

Accepted Answer

A)  increased respiratory rate. 
B)  decreased respiratory rate. 
C)  respiratory collapse. 
D)  passive exhalation. 
A)  increased respiratory rate. 
B)  decreased respiratory rate. 
C)  respiratory collapse. 
D)  passive exhalation.

Question 7

Which of the following bones does not house a sinus?

Accepted Answer

A)  Maxillary 
B)  Frontal 
C)  Sphenoid 
D)  Zygomatic 
A)  Maxillary 
B)  Frontal 
C)  Sphenoid 
D)  Zygomatic

Question 8

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

Accepted Answer

The answer of The respiratory areas are in the medulla...

Question 9

The ventral part of the medulla oblongata near the origin of the vagus nerve has

Accepted Answer

A)  baroreceptors 
B)  mechanoreceptors 
C)  central chemoreceptors 
D)  peripheral chemoreceptors 
A)  baroreceptors 
B)  mechanoreceptors 
C)  central chemoreceptors 
D)  peripheral chemoreceptors

Question 10

A flashlight placed just below the eyebrow in a darkened room illuminates the

Accepted Answer

A)  frontal sinus. 
B)  maxillary sinus. 
C)  sphenoid sinus. 
D)  ethmoid sinus. 
A)  frontal sinus. 
B)  maxillary sinus. 
C)  sphenoid sinus. 
D)  ethmoid sinus.

Question 11

Changes in the respiratory system that accompany aging are

Accepted Answer

A)  thickened mucus. 
B)  slowed swallowing reflex. 
C)  cilia become less active or vanish. 
D)  all of the above. 
A)  thickened mucus. 
B)  slowed swallowing reflex. 
C)  cilia become less active or vanish. 
D)  all of the above.

Question 12

The nasal conchae create passageways in the nasal cavity called ______.

Accepted Answer

The answer of The nasal conchae create passageways in the...

Question 13

Coughing reflexes become faster with age.

Accepted Answer

A) True 
 B)False

Question 14

Smokers are more susceptible to respiratory infections because

Accepted Answer

A)  they congregate in small areas to smoke. 
B)  their respiratory passages overproduce cilia, to which bacteria cling. 
C)  their respiratory passages lose cilia, which would otherwise remove bacteria. 
D)  the respiratory passages have too little mucus. 
A)  they congregate in small areas to smoke. 
B)  their respiratory passages overproduce cilia, to which bacteria cling. 
C)  their respiratory passages lose cilia, which would otherwise remove bacteria. 
D)  the respiratory passages have too little mucus.

Question 15

A voluntary increase in the rate and depth of breathing is called ______.

Accepted Answer

The answer of A voluntary increase in the rate and...

Question 16

At high altitudes, when capillary pressure becomes too high,

Accepted Answer

A)  fluid filters out of the blood and collects in the alveoli (pulmonary edema). 
B)  blood pressure decreases. 
C)  decreased breathing and heart rates. 
D)  blood pH increases to pathologic levels. 
A)  fluid filters out of the blood and collects in the alveoli (pulmonary edema). 
B)  blood pressure decreases. 
C)  decreased breathing and heart rates. 
D)  blood pH increases to pathologic levels.

Question 17

The first event in expiration is

Accepted Answer

A)  inter-alveolar pressure increases. 
B)  elastic tissues of the lungs, thoracic cage, and abdominal organs recoil. 
C)  air is squeezed out of the lungs. 
D)  the diaphragm and external intercostal respiratory muscles relax. 
A)  inter-alveolar pressure increases. 
B)  elastic tissues of the lungs, thoracic cage, and abdominal organs recoil. 
C)  air is squeezed out of the lungs. 
D)  the diaphragm and external intercostal respiratory muscles relax.

Question 18

Cellular respiration enables cells to harness the energy from oxygen.

Accepted Answer

A) True 
 B)False

Question 19

Gas exchange occurs across alveolar pores.

Accepted Answer

A) True 
 B)False

Question 20

Respiratory distress syndrome in newborns is caused by

Accepted Answer

A)  lack of surfactant. 
B)  lack of a respiratory membrane. 
C)  low oxygen concentration. 
D)  high oxygen concentration. 
A)  lack of surfactant. 
B)  lack of a respiratory membrane. 
C)  low oxygen concentration. 
D)  high oxygen concentration.

Exam 19: Respiratory System

The pharynx is an enlargement at the top of the trachea that houses the vocal cords.

A simple spirometer cannot measure which of the following air volumes?

The inflation reflex is activated when stretch receptors are stimulated during inspiration.

Exposure to secondhand smoke increases risk of

Oxygen plays a minor role in the control of normal respiration because

Peripheral receptors stimulate the respiratory areas, resulting in

Which of the following bones does not house a sinus?

The respiratory areas are in the medulla oblongata and the ____ of the brainstem.

The ventral part of the medulla oblongata near the origin of the vagus nerve has

A flashlight placed just below the eyebrow in a darkened room illuminates the

Changes in the respiratory system that accompany aging are

The nasal conchae create passageways in the nasal cavity called ______.

Coughing reflexes become faster with age.

Smokers are more susceptible to respiratory infections because

A voluntary increase in the rate and depth of breathing is called ______.

At high altitudes, when capillary pressure becomes too high,

The first event in expiration is

Cellular respiration enables cells to harness the energy from oxygen.

Gas exchange occurs across alveolar pores.

Respiratory distress syndrome in newborns is caused by

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Endocrine System

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

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