Question 1

Which law states that the total atmospheric pressure is a sum of the contributions of the individual gases?

Accepted Answer

A)  Henry's
B)  Charles's
C)  Boyle's
D)  Dalton'sE) None of the above
F) A) and B)

Question 2

Which of the following has no effect on oxyhemoglobin dissociation?

Accepted Answer

A)  Epinephrine
B)  Fever
C)  Thyroid hormone
D)  Low pH
E)  Erythrocyte countF) A) and E)
G) D) and E)

Question 3

The rate of oxygen diffusion is affected by the pressure gradient of carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 4

Upon inspiration,what is the name of the air in the conducting division that is not available for gas exchange?

Accepted Answer

A)  Alveolar dead space
B)  Tracheal dead space
C)  Anatomical dead space
D)  Conducting dead spaceE) All of the above
F) None of the above

Question 5

Hypocapnia will lead to which of the following conditions?

Accepted Answer

A)  Hypoventilation due to acidosis
B)  Hypoventilation due to alkalosis
C)  Hyperventilation due to acidosis
D)  Hyperventilation due to alkalosisE) A) and C)
F) All of the above

Question 6

Nitrogen bubbles can form in the blood and other tissues when a scuba diver ascends too rapidly,producing a syndrome called _________.

Accepted Answer

A)  decompression sickness
B)  hyperbaric disease
C)  cerebral embolism
D)  pulmonary barotrauma
E)  pulmonary edemaF) A) and B)
G) B) and D)

Question 7

Polio can sometimes damage the brainstem respiratory centers and result in which condition?

Accepted Answer

A)  A Bohr effect
B)  Adult respiratory distress syndrome
C)  A pneumothorax
D)  Atelectasis
E)  Ondine's curseF) C) and D)
G) B) and E)

Question 8

The pleurae and pleural fluid help prevent the spread of pulmonary infection to the pericardium.

Accepted Answer

A) True 
 B)False

Question 9

The addition of CO2 to the blood generates __________ ions in the RBCs,which in turn stimulates RBCs to unload more oxygen.

Accepted Answer

A)  sodium
B)  potassium
C)  nitrogen
D)  hydrogen
E)  chlorideF) None of the above
G) B) and C)

Question 10

What is the basic distinction between an alveolar duct and an alveolar atrium?

Accepted Answer

A)  Their shape
B)  Their size
C)  Their function
D)  Their epithelial type
E)  The presence or absence of ciliaF) A) and C)
G) None of the above

Question 11

Which bronchus is about 5cm long and slightly narrower and more horizontal than the one on the opposite side?

Accepted Answer

A)  Left segmental bronchus
B)  Right segmental bronchus
C)  Right lobar bronchus
D)  Left main bronchus
E)  Right main bronchusF) A) and B)
G) A) and C)

Question 12

What are the most numerous cells in the lungs?

Accepted Answer

A)  Mucosal cells
B)  Type I alveolar cells
C)  Type II alveolar cells
D)  Dust cells
E)  Vibrissal cellsF) C) and E)
G) B) and D)

Question 13

Among its other purposes,how is the Valsalva maneuver used?

Accepted Answer

A)  To aid in defecation and urination
B)  As part of the procedure for giving CPR to a person in respiratory arrest
C)  To ventilate the lungs during eupnea
D)  To expel more than the usual tidal volume from the lungs
E)  To clear carbon monoxide from the body and replace it with oxygenF) A) and B)
G) A) and C)

Question 14

According to the Bohr effect,a low level of oxyhemoglobin enables the blood to transport more CO2.

Accepted Answer

A) True 
 B)False

Question 15

Which of the following is a lung disease marked by abnormally few but large alveoli?

Accepted Answer

A)  Cor pulmonale
B)  Pulmonary hemosiderosis
C)  Emphysema
D)  Atelectasis
E)  Collapsed lungF) A) and B)
G) C) and D)

Question 16

Hemoglobin releases the same amount of oxygen to all the tissues regardless of variations in their metabolic rate.

Accepted Answer

A) True 
 B)False

Question 17

Output from higher brain centers can bypass both the DRG and VRG and go directly to __________,which controls the accessory muscles of respiration.

Accepted Answer

A)  the diaphragm
B)  spinal integration centers
C)  the cerebral cortex
D)  the vagus nerveE) A) and B)
F) A) and C)

Question 18

Each alveolus is surrounded by a web of blood capillaries supplied by the _________.

Accepted Answer

A)  aorta
B)  pulmonary artery
C)  pulmonary vein
D)  inferior vena cava
E)  superior vena cavaF) C) and E)
G) B) and D)

Question 19

Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases?

Accepted Answer

A)  Boyle's
B)  Valsalva's
C)  Dalton's
D)  Charles's
E)  Henry'sF) C) and D)
G) B) and E)

Question 20

Which of the following is not a function of the respiratory system?

Accepted Answer

A)  Control of pH
B)  Promotes the flow of lymph and venous blood
C)  Helps regulate blood pressure
D)  Assists in the synthesis of vasodilators
E)  Aids in defecationF) B) and C)
G) A) and E)

Exam 22: The Respiratory System

Among its other purposes,how is the Valsalva maneuver used?

Correct AnswerverifiedShow Answer

Which law states that the total pressure of a gas mixture is equal to the sum of the partial pressures of its individual gases?

Correct AnswerverifiedShow Answer

Which of the following is a lung disease marked by abnormally few but large alveoli?

Correct AnswerverifiedShow Answer

Nitrogen bubbles can form in the blood and other tissues when a scuba diver ascends too rapidly,producing a syndrome called _________.

Correct AnswerverifiedShow Answer

Which bronchus is about 5cm long and slightly narrower and more horizontal than the one on the opposite side?

Correct AnswerverifiedShow Answer

Hypocapnia will lead to which of the following conditions?

Correct AnswerverifiedShow Answer

The addition of CO2 to the blood generates __________ ions in the RBCs,which in turn stimulates RBCs to unload more oxygen.

Correct AnswerverifiedShow Answer

According to the Bohr effect,a low level of oxyhemoglobin enables the blood to transport more CO2.

Correct AnswerverifiedShow Answer

What are the most numerous cells in the lungs?

Correct AnswerverifiedShow Answer

Polio can sometimes damage the brainstem respiratory centers and result in which condition?

Correct AnswerverifiedShow Answer

The rate of oxygen diffusion is affected by the pressure gradient of carbon dioxide.

Correct AnswerverifiedShow Answer

Which law states that the total atmospheric pressure is a sum of the contributions of the individual gases?

Correct AnswerverifiedShow Answer

The pleurae and pleural fluid help prevent the spread of pulmonary infection to the pericardium.

Correct AnswerverifiedShow Answer

Which of the following has no effect on oxyhemoglobin dissociation?

Correct AnswerverifiedShow Answer

What is the basic distinction between an alveolar duct and an alveolar atrium?

Correct AnswerverifiedShow Answer

Each alveolus is surrounded by a web of blood capillaries supplied by the _________.

Correct AnswerverifiedShow Answer

Which of the following is not a function of the respiratory system?

Correct AnswerverifiedShow Answer

Output from higher brain centers can bypass both the DRG and VRG and go directly to __________,which controls the accessory muscles of respiration.

Correct AnswerverifiedShow Answer

Hemoglobin releases the same amount of oxygen to all the tissues regardless of variations in their metabolic rate.

Correct AnswerverifiedShow Answer

Upon inspiration,what is the name of the air in the conducting division that is not available for gas exchange?

Correct AnswerverifiedShow Answer

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The addition of CO₂ to the blood generates __________ ions in the RBCs,which in turn stimulates RBCs to unload more oxygen.

Correct Answer
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According to the Bohr effect,a low level of oxyhemoglobin enables the blood to transport more CO₂.

Correct Answer
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