Question 1

An increase in ventilation due to a higher elevation is called

Accepted Answer

A) hypoxic ventilatory response. 
B) acute mountain sickness. 
C) thalassemia. 
D) Bohr effect.

Question 2

Which of the following is NOT true of acute mountain sickness?

Accepted Answer

A) caused by hyperventilation and hypercapnia 
B) may be treated with a drug that causes excretion of bicarbonate 
C) low PO2 in the brain causes a headache 
D) pulmonary and cerebral edema are serious complications

Question 3

Which of the following is NOT a function of the conducting zone?

Accepted Answer

A) gas exchange 
B) filtering and cleaning the air 
C) warming and humidifying the air 
D) All of the choices are functions.

Question 4

Metabolic alkalosis

Accepted Answer

A) may be caused by excessive vomiting. 
B) occurs when the partial pressure of oxygen is decreased. 
C) occurs when arterial pH is less than 7.4. 
D) is induced by hypoventilation.

Question 5

Inhalation and accumulation of particles less than 6 mm in size can cause

Accepted Answer

A) asthmA. 
B) emphysema. 
C) cystic fibrosis. 
D) pulmonary fibrosis.

Question 6

At rest,normal oxygen unloading is ____.

Accepted Answer

A) 97% 
B) 75% 
C) 39% 
D) 22%

Question 7

Intrapleural pressure __________ during expiration.

Accepted Answer

A) increases 
B) decreases 
C) remains unchanged

Question 8

The tendency of the lungs to return to their initial size after stretching is

Accepted Answer

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

Question 9

Quiet inspiration will ____ thoracic and lung volume and _____ intrapulmonary pressure.

Accepted Answer

A) increase,increase 
B) increase,decrease 
C) decrease,increase 
D) decrease,decrease

Question 10

Which muscle's contraction will stimulate inspiration?

Accepted Answer

A) diaphragm 
B) external intercostals 
C) parasternal intercostals 
D) All of the choices are correct.

Question 11

A decreased affinity for oxygen shifts the oxygen dissociation curve to the right.

Accepted Answer

A) True 
 B)False

Question 12

Hyperbaric oxygen therapy

Accepted Answer

A) is used to treat nitrogen narcosis. 
B) exposes patients to high oxygen under low pressure. 
C) can be used to promote wound healing. 
D) would increase the time required to recover from decompression sickness.

Question 13

Hypoventilation can correct

Accepted Answer

A) metabolic acidosis. 
B) respiratory acidosis. 
C) metabolic alkalosis. 
D) respiratory alkalosis.

Question 14

The ventilation/perfusion ratio is ________ at the apex of the lungs.

Accepted Answer

A) highest 
B) lowest 
C) the same as the base

Question 15

What type of hemoglobin cannot bind to 2,3-DPG and thus has a higher affinity for oxygen?

Accepted Answer

A) hemoglobin F 
B) hemoglobin A 
C) hemoglobin B 
D) hemoglobin G

Question 16

Renal production of __________ is stimulated by hypoxemia.

Accepted Answer

A) renin 
B) colony-stimulating factor 
C) erythropoietin 
D) thrombopoietin

Question 17

Respiratory acidosis would be compensated by increased retention of bicarbonate ions in the kidneys.

Accepted Answer

A) True 
 B)False

Question 18

The form of hemoglobin with iron in an oxidized state is

Accepted Answer

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

Question 19

Intrapulmonary pressure increases as the diaphragm contracts.

Accepted Answer

A) True 
 B)False

Question 20

What law states that the pressure of a given quantity of gas is inversely proportional to its volume?

Accepted Answer

A) Boyle's Law 
B) Charles Law 
C) Dalton's Law 
D) Henry's Law

Exam 16: Respiratory Physiology

An increase in ventilation due to a higher elevation is called

Which of the following is NOT true of acute mountain sickness?

Which of the following is NOT a function of the conducting zone?

Metabolic alkalosis

Inhalation and accumulation of particles less than 6 mm in size can cause

At rest,normal oxygen unloading is ____.

Intrapleural pressure __________ during expiration.

The tendency of the lungs to return to their initial size after stretching is

Quiet inspiration will thoracic and lung volume and _ intrapulmonary pressure.

Which muscle's contraction will stimulate inspiration?

A decreased affinity for oxygen shifts the oxygen dissociation curve to the right.

Hyperbaric oxygen therapy

Hypoventilation can correct

The ventilation/perfusion ratio is ________ at the apex of the lungs.

What type of hemoglobin cannot bind to 2,3-DPG and thus has a higher affinity for oxygen?

Renal production of __________ is stimulated by hypoxemia.

Respiratory acidosis would be compensated by increased retention of bicarbonate ions in the kidneys.

The form of hemoglobin with iron in an oxidized state is

Intrapulmonary pressure increases as the diaphragm contracts.

What law states that the pressure of a given quantity of gas is inversely proportional to its volume?