Question 1

Which of the following are chemoreceptors?

Accepted Answer

A)  hair cells in the cochlea
B)  receptors in the aortic and carotid bodies
C)  baroreceptors in the aortic and carotid arch
D)  receptors that mediate the Hering-Breuer reflexE) B) and C)
F) A) and B)

Question 2

What is one function of the type II alveolar cells?

Accepted Answer

A)  production of surfactant
B)  secretion of mucus
C)  phagocytizing bacteria and other foreign particles
D)  make up the majority of the epithelial wall of the alveoli
E)  lining the pleural spaceF) A) and E)
G) D) and E)

Question 3

According to Boyle's law,the pressure exerted by a constant number of gas molecules in a container is inversely proportional to the volume of the container.Therefore,increasing the volume of the container will cause a decrease in its pressure.

Accepted Answer

A) True 
 B)False

Question 4

Which of these correctly describes the chloride shift?

Accepted Answer

A)  In the lungs,chloride enters red blood cells in exchange for bicarbonate ions.
B)  In the tissues,chloride exits red blood cells in exchange for carbonic acid.
C)  In the tissues,chloride enters red blood cells in exchange for bicarbonate ions.
D)  In the lungs,chloride enters red blood cells in exchange for CO2.
E)  In the tissues,chloride enters red blood cells in exchange for CO2.F) A) and B)
G) A) and E)

Question 5

The neurons responsible for the cyclic nature of respiratory muscle function are located in the brain stem.

Accepted Answer

A) True 
 B)False

Question 6

Regarding the relationships between the rates of oxygen consumption/carbon dioxide production and alveolar ventilation,which of these statements is TRUE?

Accepted Answer

A)  Increased ventilation without a similar increase in metabolism is called hypoventilation.
B)  In hypoventilation,alveolar PCO2 decreases below resting levels.
C)  In hyperventilation,alveolar PCO2 can decrease to zero.
D)  A decrease in metabolism without a similar decrease in alveolar ventilation would result in hyperventilation.
E)  An increase in ventilation with a matching increase in metabolism is called hyperventilation.F) B) and C)
G) A) and D)

Question 7

The process of ventilation includes both the transport of gases by bulk flow and the diffusion of gases into and out of the blood.

Accepted Answer

A) True 
 B)False

Question 8

During a physical examination,Joe learns that his resting tidal volume is 550 ml; his average resting respiratory rate is 15 breaths per minute; his total lung capacity is 6000 ml; and his anatomic dead space is 150 ml.Joe's resting alveolar ventilation is

Accepted Answer

A)  72.0 L/min
B)  6.0 L/min
C)  4.2 L/min
D)  1.8 L/min
E)  0.5 L/minF) A) and D)
G) A) and E)

Question 9

Which of the following would cause a decrease in the binding affinity of hemoglobin for oxygen?

Accepted Answer

A)  increased pH of the blood
B)  increased temperature of the blood
C)  decreased DPG levels in erythrocytes
D)  the presence of carbon monoxide
E)  decreased concentration of H+ in the bloodF) B) and D)
G) A) and B)

Exam 13: Respiratory Physiology

During a physical examination,Joe learns that his resting tidal volume is 550 ml; his average resting respiratory rate is 15 breaths per minute; his total lung capacity is 6000 ml; and his anatomic dead space is 150 ml.Joe's resting alveolar ventilation is

Correct Answer
verified

The neurons responsible for the cyclic nature of respiratory muscle function are located in the brain stem.

Correct Answer
verified

What is one function of the type II alveolar cells?

Correct Answer
verified

Which of the following are chemoreceptors?

Correct Answer
verified

According to Boyle's law,the pressure exerted by a constant number of gas molecules in a container is inversely proportional to the volume of the container.Therefore,increasing the volume of the container will cause a decrease in its pressure.

Correct Answer
verified

The process of ventilation includes both the transport of gases by bulk flow and the diffusion of gases into and out of the blood.

Correct Answer
verified

Which of these correctly describes the chloride shift?

Correct Answer
verified

Which of the following would cause a decrease in the binding affinity of hemoglobin for oxygen?

Correct Answer
verified

Regarding the relationships between the rates of oxygen consumption/carbon dioxide production and alveolar ventilation,which of these statements is TRUE?

Correct Answer
verified

Exam 13: Respiratory Physiology

During a physical examination,Joe learns that his resting tidal volume is 550 ml; his average resting respiratory rate is 15 breaths per minute; his total lung capacity is 6000 ml; and his anatomic dead space is 150 ml.Joe's resting alveolar ventilation is

Correct AnswerverifiedShow Answer

The neurons responsible for the cyclic nature of respiratory muscle function are located in the brain stem.

Correct AnswerverifiedShow Answer

What is one function of the type II alveolar cells?

Correct AnswerverifiedShow Answer

Which of the following are chemoreceptors?

Correct AnswerverifiedShow Answer

According to Boyle's law,the pressure exerted by a constant number of gas molecules in a container is inversely proportional to the volume of the container.Therefore,increasing the volume of the container will cause a decrease in its pressure.

Correct AnswerverifiedShow Answer

The process of ventilation includes both the transport of gases by bulk flow and the diffusion of gases into and out of the blood.

Correct AnswerverifiedShow Answer

Which of these correctly describes the chloride shift?

Correct AnswerverifiedShow Answer

Which of the following would cause a decrease in the binding affinity of hemoglobin for oxygen?

Correct AnswerverifiedShow Answer

Regarding the relationships between the rates of oxygen consumption/carbon dioxide production and alveolar ventilation,which of these statements is TRUE?

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
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