Question 1

The __________ separates the abdominal and thoracic cavities.

Accepted Answer

A)  lungs
B)  liver
C)  rib cage
D)  diaphragm

Question 2

Contraction of the internal intercostal muscles expands the thoracic cavity.

Accepted Answer

A) True 
 B)False

Question 3

The Bohr effect

Accepted Answer

A)  describes the effect of pH on the affinity of hemoglobin for oxygen.
B)  describes the effect of pH on the affinity of hemoglobin for carbon dioxide.
C)  describes the mechanism of ventilation.
D)  describes the effect of solubility on the amount of gas dissolved in blooD.

Question 4

The presence of water vapor in the air will reduce the partial pressure of oxygen.

Accepted Answer

A) True 
 B)False

Question 5

Central chemoreceptors respond to changes in arterial oxygen and carbon dioxide.

Accepted Answer

A) True 
 B)False

Question 6

A measure of the distensibility of the lungs is

Accepted Answer

A)  compliance.
B)  elasticity.
C)  surface tension.
D)  None of the choices are correct.

Question 7

Forced (deep) inspiration occurs with the contraction of the

Accepted Answer

A)  erectus abdominis.
B)  scalenes.
C)  internal intercostals.
D)  parasternal intercostals.

Question 8

Ventilation would be decreased by decreasing the activity of

Accepted Answer

A)  type II alveolar cells.
B)  type I alveolar cells.
C)  alveolar macrophages.
D)  None of the choices are correct.

Question 9

After a few days at a higher elevation,the affinity of hemoglobin for oxygen decreases due to 2,3-DPG.

Accepted Answer

A) True 
 B)False

Question 10

In anemia,2,3-DPG is ________ and oxygen affinity is ________.

Accepted Answer

A)  decreased,decreased.
B)  decreased,increased.
C)  increased,increased.
D)  increased,decreaseD.

Question 11

Respiratory Distress Syndrome (RDS) is a condition associated with premature babies who lack

Accepted Answer

A)  a-antitrypsin.
B)  histamine.
C)  type I alveolar cells.
D)  surfactant.

Question 12

Which of the following is true?

Accepted Answer

A)  Blood in the pulmonary veins is low in oxygen.
B)  Blood in the pulmonary veins is high in carbon dioxide.
C)  The oxygen concentration of inspired air is higher than that of alveolar air.
D)  All of the choices are true.

Question 13

What condition is marked by an accumulation of protein-rich fluid in the lungs due to permeability changes triggered by the inflammatory response to systemic infection?

Accepted Answer

A)  emphysema
B)  chronic obstructive pulmonary disease (COP
D)  
C)  pneumothorax
D)  acute respiratory distress syndrome (ARDS)

Question 14

Which of the following is NOT part of the conducting zone?

Accepted Answer

A)  primary bronchi
B)  trachea
C)  alveoli
D)  nose

Question 15

An atopic allergic asthmatic would have

Accepted Answer

A)  activation of helper T lynphocytes.
B)  production of IgE.
C)  pulmonary eosinphilia.
D)  All of the choices are correct.

Question 16

Pulmonary fibrosis may be caused by

Accepted Answer

A)  smoking.
B)  allergic reactions.
C)  breathing in coal dust.
D)  increased mucus production.

Question 17

An increase in 2,3-diphosphoglyceric acid (2,3-DPG) will ________ the affinity of hemoglobin for oxygen.

Accepted Answer

A)  increase
B)  decrease
C)  have no effect on

Question 18

The form of hemoglobin with iron in a reduced state and bonded to oxygen is

Accepted Answer

A)  oxyhemoglobin.
B)  deoxyhemoglobin.
C)  methemoglobin.
D)  carboxyhemoglobin.

Question 19

Breathing 100% oxygen will NOT

Accepted Answer

A)  significantly increase the oxygen delivery to tissues.
B)  increase the amount of oxygen in red blood cells.
C)  significantly increase the total oxygen content of whole blood.
D)  both increase the amount of oxygen in red blood cells and significantly increase the total oxygen content of whole blooD.

Question 20

Internal respiration occurs most frequently in the respiratory zone.

Accepted Answer

A) True 
 B)False

Exam 16: Respiratory Physiology

The Bohr effect

Correct AnswerverifiedShow Answer

Contraction of the internal intercostal muscles expands the thoracic cavity.

Correct AnswerverifiedShow Answer

An increase in 2,3-diphosphoglyceric acid (2,3-DPG) will ________ the affinity of hemoglobin for oxygen.

Correct AnswerverifiedShow Answer

What condition is marked by an accumulation of protein-rich fluid in the lungs due to permeability changes triggered by the inflammatory response to systemic infection?

Correct AnswerverifiedShow Answer

An atopic allergic asthmatic would have

Correct AnswerverifiedShow Answer

Internal respiration occurs most frequently in the respiratory zone.

Correct AnswerverifiedShow Answer

Breathing 100% oxygen will NOT

Correct AnswerverifiedShow Answer

Central chemoreceptors respond to changes in arterial oxygen and carbon dioxide.

Correct AnswerverifiedShow Answer

The form of hemoglobin with iron in a reduced state and bonded to oxygen is

Correct AnswerverifiedShow Answer

Which of the following is true?

Correct AnswerverifiedShow Answer

The presence of water vapor in the air will reduce the partial pressure of oxygen.

Correct AnswerverifiedShow Answer

A measure of the distensibility of the lungs is

Correct AnswerverifiedShow Answer

After a few days at a higher elevation,the affinity of hemoglobin for oxygen decreases due to 2,3-DPG.

Correct AnswerverifiedShow Answer

Ventilation would be decreased by decreasing the activity of

Correct AnswerverifiedShow Answer

Respiratory Distress Syndrome (RDS) is a condition associated with premature babies who lack

Correct AnswerverifiedShow Answer

Which of the following is NOT part of the conducting zone?

Correct AnswerverifiedShow Answer

In anemia,2,3-DPG is ________ and oxygen affinity is ________.

Correct AnswerverifiedShow Answer

The __________ separates the abdominal and thoracic cavities.

Correct AnswerverifiedShow Answer

Forced (deep) inspiration occurs with the contraction of the

Correct AnswerverifiedShow Answer

Pulmonary fibrosis may be caused by

Correct AnswerverifiedShow Answer

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In anemia,2,3-DPG is and oxygen affinity is .

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