Question 1

Which type of chronic obstructive pulmonary disease is characterized by inflammation from smoking cigarettes?

Accepted Answer

A)  asthma 
B)  chronic bronchitis 
C)  emphysema 
D)  two of these answers. 
E)  all of these answers. 
A)  asthma 
B)  chronic bronchitis 
C)  emphysema 
D)  two of these answers. 
E)  all of these answers.

Question 2

Which of the following events occurs during expiration?

Accepted Answer

A)  diaphragm moves upward 
B)  thoracic volume increases 
C)  external intercostal muscles contract 
D)  ribs are elevated 
E)  phrenic nerve is inactive 
A)  diaphragm moves upward 
B)  thoracic volume increases 
C)  external intercostal muscles contract 
D)  ribs are elevated 
E)  phrenic nerve is inactive

Question 3

The respiratory system is the only system involved with the exchange of gas between the cells of an organism and the external environment.

Accepted Answer

A) True 
 B)False

Question 4

Which of the following pressure (mm Hg) would be recorded as intra-alveolar pressure during a normal resting inspiration?

Accepted Answer

A)  756 
B)  760 
C)  764 
D)  768 
E)  0 
A)  756 
B)  760 
C)  764 
D)  768 
E)  0

Question 5

____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls.

Accepted Answer

The answer of ____________________ is a respiratory disease characterized by...

Question 6

Which of the following pressure (mm Hg) would be recorded as intrapleural pressure during a normal resting expiration?

Accepted Answer

A)  752 
B)  756 
C)  760 
D)  764 
E)  0 
A)  752 
B)  756 
C)  760 
D)  764 
E)  0

Question 7

The ____________________ is a double-walled, closed sac that separates each lung from the thoracic wall and other surrounding structures.

Accepted Answer

The answer of The ____________________ is a double-walled, closed sac...

Question 8

MATCHING
Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once.
-the volume of air entering or leaving the lungs in a single breath during quiet breathing

Accepted Answer

A) vital capacity 
B) respiratory rate 
C) FEV1 
D) tidal volume 
E) residual volume
F)total lung capacity
G)functional residual capacity
H)alveolar ventilation
I)pulmonary ventilation
J)inspiratory reserve volume
K)expiratory reserve volume
L)inspiratory capacity
M)anatomic dead space volume 
A) vital capacity 
B) respiratory rate 
C) FEV1 
D) tidal volume 
E) residual volume
F)total lung capacity
G)functional residual capacity
H)alveolar ventilation
I)pulmonary ventilation
J)inspiratory reserve volume
K)expiratory reserve volume
L)inspiratory capacity
M)anatomic dead space volume

Question 9

Select the factor in the arterial blood that has the largest effect on increasing the rate of respiration.

Accepted Answer

A)  The hydrogen ion concentration in the kidney ECF increases. 
B)  The hydrogen ion concentration in the ECF generally increases. 
C)  The partial pressure of carbon increases. 
D)  The partial pressure of oxygen drops to 90. 
E)  The partial pressure of carbon decreases. 
A)  The hydrogen ion concentration in the kidney ECF increases. 
B)  The hydrogen ion concentration in the ECF generally increases. 
C)  The partial pressure of carbon increases. 
D)  The partial pressure of oxygen drops to 90. 
E)  The partial pressure of carbon decreases.

Question 10

MATCHING
Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once.
-amount of air breathed in and out in one minute

Accepted Answer

A) vital capacity 
B) respiratory rate 
C) FEV1 
D) tidal volume 
E) residual volume
F)total lung capacity
G)functional residual capacity
H)alveolar ventilation
I)pulmonary ventilation
J)inspiratory reserve volume
K)expiratory reserve volume
L)inspiratory capacity
M)anatomic dead space volume 
A) vital capacity 
B) respiratory rate 
C) FEV1 
D) tidal volume 
E) residual volume
F)total lung capacity
G)functional residual capacity
H)alveolar ventilation
I)pulmonary ventilation
J)inspiratory reserve volume
K)expiratory reserve volume
L)inspiratory capacity
M)anatomic dead space volume

Question 11

Which of the following statements concerning the peripheral chemoreceptors is incorrect? The peripheral chemoreceptors

Accepted Answer

A)  are stimulated whenever the arterial PO2 falls below normal. 
B)  are weakly stimulated by a rise in arterial PCO2. 
C)  are stimulated by an increase in arterial H+, which plays an important role in acid-base balance. 
D)  are located at the bifurcation of the common carotid arteries and in the aortic arch. 
E)  when stimulated, reflexively increase ventilation. 
A)  are stimulated whenever the arterial PO2 falls below normal. 
B)  are weakly stimulated by a rise in arterial PCO2. 
C)  are stimulated by an increase in arterial H+, which plays an important role in acid-base balance. 
D)  are located at the bifurcation of the common carotid arteries and in the aortic arch. 
E)  when stimulated, reflexively increase ventilation.

Question 12

About ____________________ ml of air are inspired, and the same quantity expired during quiet breathing

Accepted Answer

The answer of About ____________________ ml of air are inspired,...

Question 13

For inspiration to occur, the intra-alveolar pressure must be lower than the intrapleural pressure.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following enhance oxygen release from Hb?

Accepted Answer

A)  a small partial pressure gradient for oxygen between blood and tissue 
B)  an increase in temperature. 
C)  an decrease in PCO2. 
D)  an decrease in acidity. 
E)  an decrease in DPG. 
A)  a small partial pressure gradient for oxygen between blood and tissue 
B)  an increase in temperature. 
C)  an decrease in PCO2. 
D)  an decrease in acidity. 
E)  an decrease in DPG.

Question 15

-At a PO2  of 60 mm Hg, what is the Hb saturation percentage?

Accepted Answer

A)  10 
B)  20 
C)  75 
D)  90 
A)  10 
B)  20 
C)  75 
D)  90

Question 16

Which of the following statements concerning hemoglobin is correct?

Accepted Answer

A)  the presence of hemoglobin keeps the blood PO2 low and favors O2 movement into the blood despite a very large transfer of O2 until hemoglobin is completely saturated. 
B)  hemoglobin can combine with O2, CO2, H+, and CO. 
C)  hemoglobin unloads more O2 in the presence of increased tissue acidity. 
D)  hemoglobin buffers against changes in pH due to respiratory carbonic acid. 
E)  all of these answers. 
A)  the presence of hemoglobin keeps the blood PO2 low and favors O2 movement into the blood despite a very large transfer of O2 until hemoglobin is completely saturated. 
B)  hemoglobin can combine with O2, CO2, H+, and CO. 
C)  hemoglobin unloads more O2 in the presence of increased tissue acidity. 
D)  hemoglobin buffers against changes in pH due to respiratory carbonic acid. 
E)  all of these answers.

Question 17

When blood flow to an area of the lungs is reduced but the area receives normal air flow all of the following occur except

Accepted Answer

A)  the concentration of CO2 in this area will be decreased. 
B)  the change in CO2 concentration will cause the smooth muscles of the local airways to relax. 
C)  the change in CO2 concentration will lead to increased resistance of local airways. 
D)  the change in O2 concentration will lead to dilation of local blood vessels. 
E)  the change in O2 concentration will lead to decreased vascular resistance. 
A)  the concentration of CO2 in this area will be decreased. 
B)  the change in CO2 concentration will cause the smooth muscles of the local airways to relax. 
C)  the change in CO2 concentration will lead to increased resistance of local airways. 
D)  the change in O2 concentration will lead to dilation of local blood vessels. 
E)  the change in O2 concentration will lead to decreased vascular resistance.

Question 18

-At a PO2  of 40 mm Hg, what percentage of oxygen was released from Hb

Accepted Answer

A)  10 
B)  20 
C)  25 
D)  50 
A)  10 
B)  20 
C)  25 
D)  50

Question 19

The lungs are held against the thoracic wall due to

Accepted Answer

A)  the negative intrapleural pressure. 
B)  the positive intrapulmonary pressure. 
C)  cohesiveness of the pleural fluids. 
D)  both (a) and (c) above. 
E)  all of these answers. 
A)  the negative intrapleural pressure. 
B)  the positive intrapulmonary pressure. 
C)  cohesiveness of the pleural fluids. 
D)  both (a) and (c) above. 
E)  all of these answers.

Question 20

Which of the following circumstances might cause small airways to collapse?

Accepted Answer

A)  during normal quiet breathing 
B)  during maximal forced expiration 
C)  during pneumothorax 
D)  both (b) and (c) above. 
E)  all of these answers. 
A)  during normal quiet breathing 
B)  during maximal forced expiration 
C)  during pneumothorax 
D)  both (b) and (c) above. 
E)  all of these answers.

Which type of chronic obstructive pulmonary disease is characterized by inflammation from smoking cigarettes?

Which of the following events occurs during expiration?

The respiratory system is the only system involved with the exchange of gas between the cells of an organism and the external environment.

Which of the following pressure (mm Hg) would be recorded as intra-alveolar pressure during a normal resting inspiration?

____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls.

Which of the following pressure (mm Hg) would be recorded as intrapleural pressure during a normal resting expiration?

The ____________________ is a double-walled, closed sac that separates each lung from the thoracic wall and other surrounding structures.

Select the factor in the arterial blood that has the largest effect on increasing the rate of respiration.

MATCHING Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once. -amount of air breathed in and out in one minute

Which of the following statements concerning the peripheral chemoreceptors is incorrect? The peripheral chemoreceptors

About ____________________ ml of air are inspired, and the same quantity expired during quiet breathing

For inspiration to occur, the intra-alveolar pressure must be lower than the intrapleural pressure.

Which of the following enhance oxygen release from Hb?

-At a PO₂ of 60 mm Hg, what is the Hb saturation percentage?

Which of the following statements concerning hemoglobin is correct?

When blood flow to an area of the lungs is reduced but the area receives normal air flow all of the following occur except

-At a PO₂ of 40 mm Hg, what percentage of oxygen was released from Hb

The lungs are held against the thoracic wall due to

Which of the following circumstances might cause small airways to collapse?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters

Exam 12: The Respiratory System

Which type of chronic obstructive pulmonary disease is characterized by inflammation from smoking cigarettes?

Which of the following events occurs during expiration?

The respiratory system is the only system involved with the exchange of gas between the cells of an organism and the external environment.

Which of the following pressure (mm Hg) would be recorded as intra-alveolar pressure during a normal resting inspiration?

____________________ is a respiratory disease characterized by collapse of the smaller airways and a breakdown of alveolar walls.

Which of the following pressure (mm Hg) would be recorded as intrapleural pressure during a normal resting expiration?

The ____________________ is a double-walled, closed sac that separates each lung from the thoracic wall and other surrounding structures.

Select the factor in the arterial blood that has the largest effect on increasing the rate of respiration.

MATCHING Indicate which lung volume or capacity is being described in the column below by filling in the appropriate letter in the blank. There is only one correct answer for each question and each answer may be used more than once. -amount of air breathed in and out in one minute

Which of the following statements concerning the peripheral chemoreceptors is incorrect? The peripheral chemoreceptors

About ____________________ ml of air are inspired, and the same quantity expired during quiet breathing

For inspiration to occur, the intra-alveolar pressure must be lower than the intrapleural pressure.

Which of the following enhance oxygen release from Hb?

-At a PO2 of 60 mm Hg, what is the Hb saturation percentage?

Which of the following statements concerning hemoglobin is correct?

When blood flow to an area of the lungs is reduced but the area receives normal air flow all of the following occur except

-At a PO2 of 40 mm Hg, what percentage of oxygen was released from Hb

The lungs are held against the thoracic wall due to

Which of the following circumstances might cause small airways to collapse?

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

The Central Nervous System

The Peripheral Nervous System: Afferent Division and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood and Body Defenses

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters

-At a PO₂ of 60 mm Hg, what is the Hb saturation percentage?

-At a PO₂ of 40 mm Hg, what percentage of oxygen was released from Hb