Question 1

The expansion of the lungs during inspiration generates a pressure gradient causing air to flow into the lungs.This is an example of Boyle's law.

Accepted Answer

A) True 
 B)False

Question 2

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

Accepted Answer

A) True 
 B)False

Question 3

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

Accepted Answer

A) True 
 B)False

Question 4

How is the vital capacity calculated?

Accepted Answer

A)   Inspiratory reserve volume + expiratory volume
B)   Inspiratory reserve volume + tidal volume
C)   Expiratory reserve volume + tidal volume
D)   Expiratory reserve volume + tidal volume + inspiratory reserve volume
E)   Respiratory volume + tidal volumeF) A) and C)
G) None of the above

Question 5

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 E)
G) A) and D)

Question 6

Which of the following is caused by the chemical reactions of gases of the respiratory system?

Accepted Answer

A)   Regulation of blood pressure
B)   The synthesis of vasodilators
C)   Aids in defecation
D)   Regulation of pHE) B) and C)
F) B) and D)

Question 7

Erythrocytes do not carry out aerobic respiration;thus,they do not consume any of the oxygen they are transporting.

Accepted Answer

A) True 
 B)False

Question 8

Carbon dioxide is transported by all the following means except _________.

Accepted Answer

A)   carbaminohemoglobin
B)   carbonic acid
C)   carbonate
D)   bicarbonate ions
E)   dissolved gasF) A) and B)
G) B) and E)

Question 9

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 10

The amount of air in excess of tidal volume that can be inhaled with maximum effort is the __________.

Accepted Answer

A)   vital capacity
B)   inspiratory reserve volume
C)   expiratory reserve volume
D)   residual volume
E)   inspiratory capacityF) A) and B)
G) D) and E)

Question 11

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) A) and B)
G) A) and E)

Question 12

Your breathing rate is 12 breaths/minute;your tidal volume is 500 mL;your vital capacity is 4700 mL;and your dead air space is 150 mL.Your alveolar ventilation rate is __________ mL/min.

Accepted Answer

A)   2,400
B)   3,600
C)   4,200
D)   5,600
E)   6,400F) A) and B)
G) B) and C)

Question 13

Conditions around metabolically active tissues do what to the oxyhemoglobin dissociation curve?

Accepted Answer

A)   Shift it right
B)   Shift it left
C)   Decrease the slope
D)   Increase the slopeE) C) and D)
F) A) and C)

Question 14

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) B) and D)
G) All of the above

Question 15

The pH of the cerebrospinal fluid is monitored by which of these brainstem centers?

Accepted Answer

A)   PRG
B)   Hypothalamic osmoreceptors
C)   Medullary baroreceptors
D)   Central chemoreceptorsE) B) and D)
F) A) and D)

Question 16

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) B) and C)
G) A) and B)

Question 17

Upon inspiration,what is the name of the air in the conducting zone 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) A) and B)

Question 18

In which condition are the lungs infected with Mycobacterium and produce fibrous nodules around the bacteria,leading to progressive pulmonary fibrosis?

Accepted Answer

A)   Pneumonia
B)   Dyspnea
C)   Pneumothorax
D)   Tuberculosis
E)   RhinitisF) All of the above
G) A) and D)

Question 19

Which of the following is the term for a deficiency of oxygen or the inability to utilize oxygen in a tissue?

Accepted Answer

A)   Apoxia
B)   Hypoxia
C)   Anoxia
D)   Cyanosis
E)   EupneaF) A) and D)
G) B) and D)

Question 20

The anatomical dead space is greatest in which of the following situations?

Accepted Answer

A)   After eating a large meal
B)   After swerving to narrowly avoid an accident while driving
C)   After waking up from a long nap
D)   After watching TV for an hourE) None of the above
F) A) and B)

Exam 22: The Respiratory System

Erythrocytes do not carry out aerobic respiration;thus,they do not consume any of the oxygen they are transporting.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

How is the vital capacity calculated?

Correct AnswerverifiedShow Answer

The anatomical dead space is greatest in which of the following situations?

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

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

The pH of the cerebrospinal fluid is monitored by which of these brainstem centers?

Correct AnswerverifiedShow Answer

Conditions around metabolically active tissues do what to the oxyhemoglobin dissociation curve?

Correct AnswerverifiedShow Answer

Your breathing rate is 12 breaths/minute;your tidal volume is 500 mL;your vital capacity is 4700 mL;and your dead air space is 150 mL.Your alveolar ventilation rate is __________ mL/min.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is the term for a deficiency of oxygen or the inability to utilize oxygen in a tissue?

Correct AnswerverifiedShow Answer

The amount of air in excess of tidal volume that can be inhaled with maximum effort is the __________.

Correct AnswerverifiedShow Answer

Carbon dioxide is transported by all the following means except _________.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following is caused by the chemical reactions of gases of the respiratory system?

Correct AnswerverifiedShow Answer

In which condition are the lungs infected with Mycobacterium and produce fibrous nodules around the bacteria,leading to progressive pulmonary fibrosis?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The expansion of the lungs during inspiration generates a pressure gradient causing air to flow into the lungs.This is an example of Boyle's law.

Correct AnswerverifiedShow Answer

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

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.

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