Question 1

The production of hemoglobin and red blood cells in bone marrow is controlled by a hormone called thymopoietin.

Accepted Answer

A) True 
 B)False

Question 2

Arterial percent oxygen saturation is greatly affected by exercise.

Accepted Answer

A) True 
 B)False

Question 3

Normal arterial PO2 is

Accepted Answer

A) 40 mm Hg. 
B) 46 mm Hg. 
C) 85 mm Hg. 
D) 100 mm Hg. 
A) 40 mm Hg. 
B) 46 mm Hg. 
C) 85 mm Hg. 
D) 100 mm Hg.

Question 4

When tissues are producing more CO2 through increased metabolic activity,less O2 is provided to those tissues.

Accepted Answer

A) True 
 B)False

Question 5

Quiet expiration is caused by

Accepted Answer

A) contraction of the external intercostals. 
B) contraction of the internal intercostals. 
C) lung recoil and increased intrapulmonary pressure. 
D) contraction of the scalenes. 
A) contraction of the external intercostals. 
B) contraction of the internal intercostals. 
C) lung recoil and increased intrapulmonary pressure. 
D) contraction of the scalenes.

Question 6

The "Adam's apple" is formed by the largest cartilage of the larynx.

Accepted Answer

A) True 
 B)False

Question 7

What type of nerve fibers are stimulated by capsaicin that causes apnea,then rapid,shallow breathing?

Accepted Answer

A) myelinated A fibers 
B) unmyelinated C fibers 
C) unmyelinated B fibers 
D) myelinated C fibers 
A) myelinated A fibers 
B) unmyelinated C fibers 
C) unmyelinated B fibers 
D) myelinated C fibers

Question 8

The form of hemoglobin with iron in a reduced state and not bonded to oxygen is

Accepted Answer

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

Question 9

The majority of carbon dioxide is transported in the blood as

Accepted Answer

A) dissolved carbon dioxide in the blood. 
B) bicarbonate ion. 
C) carbaminohemoglobin. 
D) carboxyhemoglobin. 
A) dissolved carbon dioxide in the blood. 
B) bicarbonate ion. 
C) carbaminohemoglobin. 
D) carboxyhemoglobin.

Question 10

The foramen ovale

Accepted Answer

A) closes after birth due to decreased pulmonary vascular resistance. 
B) normally shunts blood between the pulmonary artery and aorta. 
C) normally shunts blood between the right and left ventricles. 
D) has no importance in fetal respiratory physiology. 
A) closes after birth due to decreased pulmonary vascular resistance. 
B) normally shunts blood between the pulmonary artery and aorta. 
C) normally shunts blood between the right and left ventricles. 
D) has no importance in fetal respiratory physiology.

Question 11

Which of the following may result from emphysema?

Accepted Answer

A) reduced gas exchange surface area 
B) air trapping 
C) cor pulmonale 
D) All of the choices are correct. 
A) reduced gas exchange surface area 
B) air trapping 
C) cor pulmonale 
D) All of the choices are correct.

Question 12

Ventilation involves both internal and external components.

Accepted Answer

A) True 
 B)False

Question 13

Decompression sickness could occur if an airplane's cabin depressurized at a high altitude.

Accepted Answer

A) True 
 B)False

Question 14

Increasing arterial blood temperature decreases the affinity of hemoglobin for oxygen.

Accepted Answer

A) True 
 B)False

Question 15

Diffusion rate across the respiratory membrane is rapid because

Accepted Answer

A) there are about 750 square feet of alveoli membrane. 
B) alveoli are one cell thick. 
C) the air-blood barrier is two cells thick. 
D) All of the choices are correct. 
A) there are about 750 square feet of alveoli membrane. 
B) alveoli are one cell thick. 
C) the air-blood barrier is two cells thick. 
D) All of the choices are correct.

Question 16

Increasing the partial pressure of a gas increases the amount of that gas which will dissolve in a fluid.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following changes would occur during exercise?

Accepted Answer

A) increased blood gases 
B) decreased ventilation 
C) decreased oxygen delivery to muscles 
D) increased oxygen extraction by muscles 
A) increased blood gases 
B) decreased ventilation 
C) decreased oxygen delivery to muscles 
D) increased oxygen extraction by muscles

Question 18

Sickle-cell anemia can be treated with the drug hydroxyurea which stimulates

Accepted Answer

A) production of hemoglobin gamma chains. 
B) destruction of hemoglobin beta chains. 
C) production of hemoglobin alpha chains. 
D) destruction of hemoglobin S. 
A) production of hemoglobin gamma chains. 
B) destruction of hemoglobin beta chains. 
C) production of hemoglobin alpha chains. 
D) destruction of hemoglobin S.

Question 19

Normal venous PO2 is

Accepted Answer

A) 40 mm Hg. 
B) 46 mm Hg. 
C) 85 mm Hg. 
D) 100 mm Hg. 
A) 40 mm Hg. 
B) 46 mm Hg. 
C) 85 mm Hg. 
D) 100 mm Hg.

Question 20

The maximum amount of gas that can be inspired after a normal tidal expiration is the inspiratory capacity.

Accepted Answer

A) True 
 B)False

The production of hemoglobin and red blood cells in bone marrow is controlled by a hormone called thymopoietin.

Arterial percent oxygen saturation is greatly affected by exercise.

Normal arterial P_O2 is

When tissues are producing more CO₂ through increased metabolic activity,less O₂ is provided to those tissues.

Quiet expiration is caused by

The "Adam's apple" is formed by the largest cartilage of the larynx.

What type of nerve fibers are stimulated by capsaicin that causes apnea,then rapid,shallow breathing?

The form of hemoglobin with iron in a reduced state and not bonded to oxygen is

The majority of carbon dioxide is transported in the blood as

The foramen ovale

Which of the following may result from emphysema?

Ventilation involves both internal and external components.

Decompression sickness could occur if an airplane's cabin depressurized at a high altitude.

Increasing arterial blood temperature decreases the affinity of hemoglobin for oxygen.

Diffusion rate across the respiratory membrane is rapid because

Increasing the partial pressure of a gas increases the amount of that gas which will dissolve in a fluid.

Which of the following changes would occur during exercise?

Sickle-cell anemia can be treated with the drug hydroxyurea which stimulates

Normal venous P_O2 is

The maximum amount of gas that can be inspired after a normal tidal expiration is the inspiratory capacity.

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Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

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Exam 16: Respiratory Physiology

The production of hemoglobin and red blood cells in bone marrow is controlled by a hormone called thymopoietin.

Arterial percent oxygen saturation is greatly affected by exercise.

Normal arterial PO2 is

When tissues are producing more CO2 through increased metabolic activity,less O2 is provided to those tissues.

Quiet expiration is caused by

The "Adam's apple" is formed by the largest cartilage of the larynx.

What type of nerve fibers are stimulated by capsaicin that causes apnea,then rapid,shallow breathing?

The form of hemoglobin with iron in a reduced state and not bonded to oxygen is

The majority of carbon dioxide is transported in the blood as

The foramen ovale

Which of the following may result from emphysema?

Ventilation involves both internal and external components.

Decompression sickness could occur if an airplane's cabin depressurized at a high altitude.

Increasing arterial blood temperature decreases the affinity of hemoglobin for oxygen.

Diffusion rate across the respiratory membrane is rapid because

Increasing the partial pressure of a gas increases the amount of that gas which will dissolve in a fluid.

Which of the following changes would occur during exercise?

Sickle-cell anemia can be treated with the drug hydroxyurea which stimulates

Normal venous PO2 is

The maximum amount of gas that can be inspired after a normal tidal expiration is the inspiratory capacity.

The Study of Body Function

Chemical Composition of the Body

Cell Structure and Genetic Control

Enzymes and Energy

Cell Respiration and Metabolism

Interactions Between Cells and the Extracellular Environment

The Nervous System: Neurons and Synapses

The Central Nervous System

The Autonomic Nervous System

Sensory Physiology

Endocrine Glands: Secretion and Action of Hormones

Muscle: Mechanisms of Contraction and Neural Control

Blood,Heart and Circulation

Cardiac Output,Blood Flow,and Blood Pressure

The Immune System

Physiology of the Kidneys

The Digestive System

Regulation and Metabolism

Reproduction

Filters

Normal arterial P_O2 is

When tissues are producing more CO₂ through increased metabolic activity,less O₂ is provided to those tissues.

Normal venous P_O2 is