Question 1

Nitric oxide (NO)may form the following compound and increase the drive to breath.

Accepted Answer

A) NO2 
B) HCO3 
C) SNOs 
D) SIDS 
A) NO2 
B) HCO3 
C) SNOs 
D) SIDS

Question 2

What disease is characterized by the abnormal hemoglobin S?

Accepted Answer

A) sickle-cell anemia 
B) thalassemia 
C) cystic fibrosis 
D) emphysema 
A) sickle-cell anemia 
B) thalassemia 
C) cystic fibrosis 
D) emphysema

Question 3

Normal alveolar PCO2 is

Accepted Answer

A) 40 mm Hg. 
B) 46 mm Hg. 
C) 100 mm Hg. 
D) 105 mm Hg. 
A) 40 mm Hg. 
B) 46 mm Hg. 
C) 100 mm Hg. 
D) 105 mm Hg.

Question 4

A pH above 7.45 is considered

Accepted Answer

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

Question 5

Which of the following is an inflammatory cell associated with COPDs but NOT asthma?

Accepted Answer

A) mast cells 
B) helper T cells 
C) eosinophils 
D) cytotoxic T cells 
A) mast cells 
B) helper T cells 
C) eosinophils 
D) cytotoxic T cells

Question 6

Pulmonary circulation is a ____ resistance and ____ pressure pathway.

Accepted Answer

A) low,high 
B) low,low 
C) high,low 
D) high,high 
A) low,high 
B) low,low 
C) high,low 
D) high,high

Question 7

Myoglobin has a greater affinity for oxygen than hemoglobin.

Accepted Answer

A) True 
 B)False

Question 8

The I neurons of the dorsal respiratory group stimulate the

Accepted Answer

A) sympathetic nervous system. 
B) phrenic nerve. 
C) vagus nerve. 
D) parasympathetic nervous system. 
A) sympathetic nervous system. 
B) phrenic nerve. 
C) vagus nerve. 
D) parasympathetic nervous system.

Question 9

What phospholipid decreases the surface tension of the alveoli?

Accepted Answer

A) mucus 
B) saliva 
C) surfactant 
D) lymph 
A) mucus 
B) saliva 
C) surfactant 
D) lymph

Question 10

Blood flow is greatest at the _____ of the lungs and perfusion is greatest at the _____ of the lungs.

Accepted Answer

A) apex;apex 
B) apex;base 
C) base;base 
D) base;apex 
A) apex;apex 
B) apex;base 
C) base;base 
D) base;apex

Question 11

Carbon monoxide is lethal because it

Accepted Answer

A) reduces CO2 and slows breathing. 
B) increases CO2 and causes seizures. 
C) binds hemoglobin preventing oxygen binding. 
D) increases oxygen unloading at the cells. 
A) reduces CO2 and slows breathing. 
B) increases CO2 and causes seizures. 
C) binds hemoglobin preventing oxygen binding. 
D) increases oxygen unloading at the cells.

Question 12

According to the Bohr effect,as pH is lowered,the affinity of hemoglobin for oxygen

Accepted Answer

A) increases. 
B) decreases. 
C) remains unchanged. 
A) increases. 
B) decreases. 
C) remains unchanged.

Question 13

The partial pressure of oxygen decreases at high altitude because the amount of oxygen in the air is decreased.

Accepted Answer

A) True 
 B)False

Question 14

A decrease in temperature will shift the oxygen dissociation curve to the

Accepted Answer

A) right. 
B) left. 
C) will not shift the curve. 
A) right. 
B) left. 
C) will not shift the curve.

Question 15

The chloride shift and its reverse play an important role in the acid-base balance of the blood.

Accepted Answer

A) True 
 B)False

Question 16

Peripheral chemoreceptors are directly stimulated by blood CO2 levels.

Accepted Answer

A) True 
 B)False

Question 17

Limits on stretching the lungs are due to the

Accepted Answer

A) Haldane effect. 
B) law of Laplace. 
C) Hering-Breuer reflex. 
D) None of the choices is correct. 
A) Haldane effect. 
B) law of Laplace. 
C) Hering-Breuer reflex. 
D) None of the choices is correct.

Question 18

When a diver descends 20 meters below sea level,the total atmospheric pressure would be _______ the pressure at sea level.

Accepted Answer

A) double 
B) triple 
C) quadruple 
D) the same as 
A) double 
B) triple 
C) quadruple 
D) the same as

Question 19

The total amount of gas in the lungs after a maximum inspiration is the

Accepted Answer

A) vital capacity. 
B) total lung capacity. 
C) tidal volume. 
D) functional residual capacity. 
A) vital capacity. 
B) total lung capacity. 
C) tidal volume. 
D) functional residual capacity.

Question 20

Decompression sickness is caused by ascending to sea level too quickly which results in bubbles of _____ to form in the blood.

Accepted Answer

A) oxygen 
B) carbon dioxide 
C) carbon monoxide 
D) nitrogen 
A) oxygen 
B) carbon dioxide 
C) carbon monoxide 
D) nitrogen

Nitric oxide (NO)may form the following compound and increase the drive to breath.

What disease is characterized by the abnormal hemoglobin S?

Normal alveolar P_CO2 is

A pH above 7.45 is considered

Which of the following is an inflammatory cell associated with COPDs but NOT asthma?

Pulmonary circulation is a resistance and pressure pathway.

Myoglobin has a greater affinity for oxygen than hemoglobin.

The I neurons of the dorsal respiratory group stimulate the

What phospholipid decreases the surface tension of the alveoli?

Blood flow is greatest at the _ of the lungs and perfusion is greatest at the _ of the lungs.

Carbon monoxide is lethal because it

According to the Bohr effect,as pH is lowered,the affinity of hemoglobin for oxygen

The partial pressure of oxygen decreases at high altitude because the amount of oxygen in the air is decreased.

A decrease in temperature will shift the oxygen dissociation curve to the

The chloride shift and its reverse play an important role in the acid-base balance of the blood.

Peripheral chemoreceptors are directly stimulated by blood CO₂ levels.

Limits on stretching the lungs are due to the

When a diver descends 20 meters below sea level,the total atmospheric pressure would be _______ the pressure at sea level.

The total amount of gas in the lungs after a maximum inspiration is the

Decompression sickness is caused by ascending to sea level too quickly which results in bubbles of _____ to form in the blood.

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

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Exam 16: Respiratory Physiology

Nitric oxide (NO)may form the following compound and increase the drive to breath.

What disease is characterized by the abnormal hemoglobin S?

Normal alveolar PCO2 is

A pH above 7.45 is considered

Which of the following is an inflammatory cell associated with COPDs but NOT asthma?

Pulmonary circulation is a ____ resistance and ____ pressure pathway.

Myoglobin has a greater affinity for oxygen than hemoglobin.

The I neurons of the dorsal respiratory group stimulate the

What phospholipid decreases the surface tension of the alveoli?

Blood flow is greatest at the _____ of the lungs and perfusion is greatest at the _____ of the lungs.

Carbon monoxide is lethal because it

According to the Bohr effect,as pH is lowered,the affinity of hemoglobin for oxygen

The partial pressure of oxygen decreases at high altitude because the amount of oxygen in the air is decreased.

A decrease in temperature will shift the oxygen dissociation curve to the

The chloride shift and its reverse play an important role in the acid-base balance of the blood.

Peripheral chemoreceptors are directly stimulated by blood CO2 levels.

Limits on stretching the lungs are due to the

When a diver descends 20 meters below sea level,the total atmospheric pressure would be _______ the pressure at sea level.

The total amount of gas in the lungs after a maximum inspiration is the

Decompression sickness is caused by ascending to sea level too quickly which results in bubbles of _____ to form in the blood.

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 alveolar P_CO2 is

Pulmonary circulation is a resistance and pressure pathway.

Blood flow is greatest at the _ of the lungs and perfusion is greatest at the _ of the lungs.

Peripheral chemoreceptors are directly stimulated by blood CO₂ levels.