Question 1

The thyroid cartilage is part of the ________.

Accepted Answer

The answer of The thyroid cartilage is part of the...

Question 2

Match the term with the appropriate description. Answer with the letter preceding the description.
-Hard palate

Accepted Answer

A)  The floor of the nasal cavity
B)  Superior portion of pharynx
C)  A soft process that extends inferiorly from the posterior edge of the soft palate
D)  The opening of the nasal cavity into the pharynx
E)  External openings of the nasal cavityF) A) and C)
G) B) and C)

Question 3

Which of the following is NOT a process of respiration?

Accepted Answer

A)   Voice production
B)   Systemic respiration
C)   Ventilation
D)   Pulmonary respiration
E)   Transport of blood gases in the bloodF) C) and D)
G) B) and D)

Question 4

The ventral respiratory group

Accepted Answer

A)   is located in the pons.
B)   stimulates the intercostal and abdominal muscles.
C)   is part of the pontine respiratory group.
D)   is active only in exhalation.
E)   stimulates the diaphragm.F) A) and E)
G) B) and E)

Question 5

Hemoglobin that has oxygen attached is called ________.

Accepted Answer

A)   hemoglobin-oxygen complex
B)   carbaminohemoglobin
C)   oxyhemoglobin
D)   deoxyhemoglobin
E)   globoxygenF) B) and E)
G) C) and E)

Question 6

Arrange the following structures in the order air passes through them during inhalation.
(1)  Alveolar ducts
(2)  Alveolus
(3)  Respiratory bronchiole
(4)  Terminal bronchiole

Accepted Answer

A)   1, 2, 3, 4
B)   2, 1, 3, 4
C)   4, 3, 1, 2
D)   3, 2, 1, 4
E)   4, 3, 2, 1F) A) and E)
G) A) and B)

Question 7

After hyperventilating for several minutes, a person may develop short periods of apnea because

Accepted Answer

A)   blood pH would drop and inhibit inspiration.
B)   oxygen in the lungs has not had time to diffuse into the blood.
C)   the level of oxygen has increased and inhibits the inspiratory center.
D)   the level of CO2 decreases below the level necessary to stimulate the inspiratory center.
E)   blood pH will rise and stimulate expiration.F) B) and C)
G) A) and E)

Question 8

Increasing ventilation will increase the PO2 and decrease the PCO2, which promotes gas exchange.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following is part of the upper respiratory tract?

Accepted Answer

A)   Lungs
B)   Pharynx
C)   Trachea
D)   Bronchi
E)   BronchiolesF) B) and C)
G) C) and D)

Question 10

Calculate the alveolar ventilation if the tidal volume is 500 ml, the respiratory rate is 12/minute, and the anatomical dead space is 100 ml.

Accepted Answer

A)   1200 ml
B)   1800 ml
C)   4800 ml
D)   6000 ml
E)   7200 mlF) A) and D)
G) None of the above

Question 11

Arrange the following in order from highest to lowest PO2.
(1)  PO2 of pulmonary veins
(2)  PO2 of pulmonary artery
(3)  PO2 of alveolar air

Accepted Answer

A)   1, 2, 3
B)   2, 1, 3
C)   2, 3, 1
D)   3, 1, 2
E)   3, 2, 1F) A) and D)
G) C) and D)

Question 12

The Hering-Breuer reflex

Accepted Answer

A)   causes erratic respirations.
B)   helps prevent overinflation of the lungs.
C)   has its sensory components in the sympathetic nerves.
D)   is a normal response to increased O2 content in the blood.
E)   limits how much air a person can expire.F) A) and C)
G) A) and D)

Question 13

Mr. Jones has a blood pH of 7.00 and a temperature of 100.5°F. His oxygen-hemoglobin dissociation curve would

Accepted Answer

A)   shift to the right, causing more O2 to be released to his cells.
B)   shift to the left, allowing less O2 to be released to his cells.
C)   show no change, allowing the O2 concentration to remain stable.D) None of the above
E) A) and B)

Question 14

A person has severe damage or disease in the upper area of their right lung. Surgery is necessary. The doctor would need to remove

Accepted Answer

A)   the entire right lung.
B)   the superior lobe of the right lung.
C)   the apical bronchopulmonary segment of the right lung.
D)   only the damaged area of the apical bronchopulmonary segment.
E)   the apical, anterior, and posterior segments of the superior lobe.F) A) and B)
G) B) and C)

Question 15

Each lobe of each lung is supplied by a ________.

Accepted Answer

A)   primary bronchus
B)   secondary bronchus
C)   tertiary bronchus
D)   bronchiole
E)   segmental bronchusF) B) and C)
G) B) and D)

Question 16

Which of the following increases the rate of gas exchange across the respiratory membrane?

Accepted Answer

A)   Increased fluid in the alveoli
B)   Increased thickness of the respiratory membrane
C)   Increased surface area of the respiratory membrane
D)   Increased connective tissue in the alveolar wall
E)   Decreased surface area of the respiratory membraneF) B) and E)
G) None of the above

Question 17

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv)  will

Accepted Answer

A)   decrease below atmospheric pressure (P
B)  , causing air to move out of his lungs.
B)   become greater than atmospheric pressure (P
B)  , causing air to move into his lungs.
C)   decrease below atmospheric pressure (P
B)  , causing air to move into his lungs.
D)   become greater than atmospheric pressure (P
B)  , causing air to move out of his lungs.
E)   does not change.F) A) and D)
G) A) and C)

Question 18

Match the disorder of the respiratory system with the best description.
-Cystic fibrosis

Accepted Answer

A)  Destruction of the alveolar walls
B)  Inflammation of the bronchi
C)  Inherited disease that affects secretory cells lining the lungs
D)  Replacement of lung tissue with fibrous connective tissue
E)  Infant stops breathing during sleepF) C) and D)
G) All of the above

Question 19

Hering-Breuer reflex is important in adults to regulate the basic rhythm of breathing.

Accepted Answer

A) True 
 B)False

Question 20

Use the following key to determine the best answer.
-(1)  PO2 of arterial blood
(2)  PO2 of intracellular fluid

Accepted Answer

A)  First item is greater than the second item.
B)  First item is less than the second item.
C)  First item is equal or nearly equal to the second item.D) A) and B)
E) All of the above

Exam 23: Respiratory System

The thyroid cartilage is part of the ________.

Correct AnswerverifiedShow Answer

Calculate the alveolar ventilation if the tidal volume is 500 ml, the respiratory rate is 12/minute, and the anatomical dead space is 100 ml.

Correct AnswerverifiedShow Answer

Mr. Jones has a blood pH of 7.00 and a temperature of 100.5°F. His oxygen-hemoglobin dissociation curve would

Correct AnswerverifiedShow Answer

Increasing ventilation will increase the PO2 and decrease the PCO2, which promotes gas exchange.

Correct AnswerverifiedShow Answer

The Hering-Breuer reflex

Correct AnswerverifiedShow Answer

A person has severe damage or disease in the upper area of their right lung. Surgery is necessary. The doctor would need to remove

Correct AnswerverifiedShow Answer

Match the disorder of the respiratory system with the best description. -Cystic fibrosis

Correct AnswerverifiedShow Answer

Which of the following increases the rate of gas exchange across the respiratory membrane?

Correct AnswerverifiedShow Answer

Arrange the following in order from highest to lowest PO2. (1) PO2 of pulmonary veins (2) PO2 of pulmonary artery (3) PO2 of alveolar air

Correct AnswerverifiedShow Answer

Each lobe of each lung is supplied by a ________.

Correct AnswerverifiedShow Answer

The ventral respiratory group

Correct AnswerverifiedShow Answer

Hemoglobin that has oxygen attached is called ________.

Correct AnswerverifiedShow Answer

Which of the following is NOT a process of respiration?

Correct AnswerverifiedShow Answer

During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (Palv) will

Correct AnswerverifiedShow Answer

Match the term with the appropriate description. Answer with the letter preceding the description. -Hard palate

Correct AnswerverifiedShow Answer

After hyperventilating for several minutes, a person may develop short periods of apnea because

Correct AnswerverifiedShow Answer

Hering-Breuer reflex is important in adults to regulate the basic rhythm of breathing.

Correct AnswerverifiedShow Answer

Use the following key to determine the best answer. -(1) PO2 of arterial blood (2) PO2 of intracellular fluid

Correct AnswerverifiedShow Answer

Which of the following is part of the upper respiratory tract?

Correct AnswerverifiedShow Answer

Arrange the following structures in the order air passes through them during inhalation. (1) Alveolar ducts (2) Alveolus (3) Respiratory bronchiole (4) Terminal bronchiole

Correct AnswerverifiedShow Answer

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Increasing ventilation will increase the PO₂ and decrease the PCO₂, which promotes gas exchange.

Correct Answer
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Arrange the following in order from highest to lowest PO₂. (1) PO₂ of pulmonary veins (2) PO₂ of pulmonary artery (3) PO₂ of alveolar air

Correct Answer
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During inspiration, contraction of the diaphragm causes the volume of Mr. Jones' thoracic cavity to increase and the pleural pressure to decrease. The pressure in his alveoli (P_alv) will

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Use the following key to determine the best answer. -(1) PO₂ of arterial blood (2) PO₂ of intracellular fluid

Correct Answer
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Correct Answer
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Correct Answer
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