Question 1

The atmospheric PO2  is approximately

Accepted Answer

A)  25 mmHg. 
B)  120 mmHg. 
C)  160 mmHg. 
D)  220 mmHg. 
E)  the same as for nitrogen. 
A)  25 mmHg. 
B)  120 mmHg. 
C)  160 mmHg. 
D)  220 mmHg. 
E)  the same as for nitrogen.

Question 2

Pulmonary ventilation is another name for the mechanical act of ____________________.

Accepted Answer

The answer of Pulmonary ventilation is another name for the...

Question 3

Which of the following is not a function of the respiratory system?

Accepted Answer

A)  transports O2 to the tissues 
B)  contributes to maintenance of normal acid-base balance 
C)  provides a route for heat and water elimination 
D)  enables speech, singing, and other vocalization 
E)  removes, modifies, activates, or inactivates various materials passing through the pulmonary circulation 
A)  transports O2 to the tissues 
B)  contributes to maintenance of normal acid-base balance 
C)  provides a route for heat and water elimination 
D)  enables speech, singing, and other vocalization 
E)  removes, modifies, activates, or inactivates various materials passing through the pulmonary circulation

Question 4

Contraction of the external ____________________ muscles elevates the ribs.

Accepted Answer

The answer of Contraction of the external ____________________ muscles elevates...

Question 5

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram.
-total lung capacity

Accepted Answer

The answer of   
The following questions refer to...

Question 6

The residual volume

Accepted Answer

A)  helps prevent lung collapse. 
B)  is the normal volume of air inhaled. 
C)  is the normal volume of air exhaled. 
D)  is the maximum volume of air that can be inspired. 
E)  is the minimum volume of air that can be inspired. 
A)  helps prevent lung collapse. 
B)  is the normal volume of air inhaled. 
C)  is the normal volume of air exhaled. 
D)  is the maximum volume of air that can be inspired. 
E)  is the minimum volume of air that can be inspired.

Question 7

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 maximum volume of air that can be inspired at the end of a normal expiration

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 8

The respiratory quotient is the ratio of ____________________ to ____________________.

Accepted Answer

CO₂ produc

Question 9

The ____________________ nerve supplies the diaphragm.

Accepted Answer

The answer of The ____________________ nerve supplies the diaphragm....

Question 10

During inspiration,

Accepted Answer

A)  intra-alveolar pressure falls below atmospheric pressure. 
B)  the diaphragm contracts. 
C)  the internal intercostal muscles contract. 
D)  both (a) and (b) above. 
E)  all of these answers. 
A)  intra-alveolar pressure falls below atmospheric pressure. 
B)  the diaphragm contracts. 
C)  the internal intercostal muscles contract. 
D)  both (a) and (b) above. 
E)  all of these answers.

Question 11

Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Accepted Answer

A)  a higher partial pressure of oxygen in the atmosphere. 
B)  an abnormally high partial pressure of carbon dioxide in the atmosphere. 
C)  a reduced partial pressure of carbon dioxide in the atmosphere. 
D)  a low pulmonary capillary, partial pressure of oxygen. 
E)  none of these answers. 
A)  a higher partial pressure of oxygen in the atmosphere. 
B)  an abnormally high partial pressure of carbon dioxide in the atmosphere. 
C)  a reduced partial pressure of carbon dioxide in the atmosphere. 
D)  a low pulmonary capillary, partial pressure of oxygen. 
E)  none of these answers.

Question 12

Indicate the effect the following changes would have on oxygen release from Hb.
-the oxygen-Hb dissociation curve has shifted down and to the right

Accepted Answer

A) this change would increase the rate 
B) this change would decrease the rate 
C) this change would have no effect on the rate 
A) this change would increase the rate 
B) this change would decrease the rate 
C) this change would have no effect on the rate

Question 13

A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Accepted Answer

A)  3,500 ml/minute. 
B)  3,920 ml/minute. 
C)  4,260 ml/minute. 
D)  5,600 ml/minute. 
E)  6,240 ml/minute. 
A)  3,500 ml/minute. 
B)  3,920 ml/minute. 
C)  4,260 ml/minute. 
D)  5,600 ml/minute. 
E)  6,240 ml/minute.

Question 14

Which skeletal muscle serves as an accessory respiratory muscle?

Accepted Answer

A)  rectus abdominus. 
B)  diaphragm. 
C)  external intercostal. 
D)  internal intercostal. 
E)  none of the above 
A)  rectus abdominus. 
B)  diaphragm. 
C)  external intercostal. 
D)  internal intercostal. 
E)  none of the above

Question 15

Inspiratory events occur because

Accepted Answer

A)  the air pressure in the alveoli is greater than that of the atmosphere. 
B)  the air pressure in the alveoli is less than that of the atmosphere. 
C)  the volume of the thoracic cavity increases. 
D)  both (a) and (c) above. 
E)  both (b) and (c) above 
A)  the air pressure in the alveoli is greater than that of the atmosphere. 
B)  the air pressure in the alveoli is less than that of the atmosphere. 
C)  the volume of the thoracic cavity increases. 
D)  both (a) and (c) above. 
E)  both (b) and (c) above

Question 16

The partial pressure of oxygen in the pulmonary veins

Accepted Answer

A)  is about 100 mmHg. 
B)  equivalent to alveolar partial pressure. 
C)  is dramatically different than pulmonary arteries' partial pressure 
D)  both (a) and (b) above. 
E)  all of these answers. 
A)  is about 100 mmHg. 
B)  equivalent to alveolar partial pressure. 
C)  is dramatically different than pulmonary arteries' partial pressure 
D)  both (a) and (b) above. 
E)  all of these answers.

Question 17

Which factor would result in bronchoconstriction?

Accepted Answer

A)  sympathetic stimulation. 
B)  secretion of acetylcholine 
C)  epinephrine secretion. 
D)  increased carbon dioxide concentration. 
E)  none of these answers. 
A)  sympathetic stimulation. 
B)  secretion of acetylcholine 
C)  epinephrine secretion. 
D)  increased carbon dioxide concentration. 
E)  none of these answers.

Question 18

Without pulmonary surfactant,

Accepted Answer

A)  small alveoli would tend to collapse. 
B)  larger alveoli would tend to empty into smaller alveoli. 
C)  all alveoli would be easier to inflate. 
D)  the surface tension in the alveoli would be reduced. 
E)  inspirations would be easier. 
A)  small alveoli would tend to collapse. 
B)  larger alveoli would tend to empty into smaller alveoli. 
C)  all alveoli would be easier to inflate. 
D)  the surface tension in the alveoli would be reduced. 
E)  inspirations would be easier.

Question 19

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 extra volume of air that can be maximally inspired over and above the tidal volume

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 20

Select the incorrect statement about hemoglobin.

Accepted Answer

A)  It combines with oxygen at the lungs. 
B)  It contains iron. 
C)  It forms an irreversible association with oxygen. 
D)  It is located inside the red blood cell. 
E)  Its globin portion is a polypeptide. 
A)  It combines with oxygen at the lungs. 
B)  It contains iron. 
C)  It forms an irreversible association with oxygen. 
D)  It is located inside the red blood cell. 
E)  Its globin portion is a polypeptide.

The atmospheric PO₂ is approximately

Pulmonary ventilation is another name for the mechanical act of ____________________.

Which of the following is not a function of the respiratory system?

Contraction of the external ____________________ muscles elevates the ribs.

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram. -total lung capacity

The residual volume

The respiratory quotient is the ratio of to .

The ____________________ nerve supplies the diaphragm.

During inspiration,

Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Indicate the effect the following changes would have on oxygen release from Hb. -the oxygen-Hb dissociation curve has shifted down and to the right

A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Which skeletal muscle serves as an accessory respiratory muscle?

Inspiratory events occur because

The partial pressure of oxygen in the pulmonary veins

Which factor would result in bronchoconstriction?

Without pulmonary surfactant,

Select the incorrect statement about hemoglobin.

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

The atmospheric PO2 is approximately

Pulmonary ventilation is another name for the mechanical act of ____________________.

Which of the following is not a function of the respiratory system?

Contraction of the external ____________________ muscles elevates the ribs.

The following questions refer to the accompanying diagram of a normal spirogram. The wave labels have been removed and replaced with letters A-H. Match the letter with list of missing terms below to complete the diagram. -total lung capacity

The residual volume

The respiratory quotient is the ratio of ____________________ to ____________________.

The ____________________ nerve supplies the diaphragm.

During inspiration,

Which factor below would reduce the amount of oxygen transfer across the respiratory membrane?

Indicate the effect the following changes would have on oxygen release from Hb. -the oxygen-Hb dissociation curve has shifted down and to the right

A person who has a tidal volume of 400 ml, a respiratory rate of 14 and an anatomic dead space volume of 150 ml will have an alveolar ventilation rate of

Which skeletal muscle serves as an accessory respiratory muscle?

Inspiratory events occur because

The partial pressure of oxygen in the pulmonary veins

Which factor would result in bronchoconstriction?

Without pulmonary surfactant,

Select the incorrect statement about hemoglobin.

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

The atmospheric PO₂ is approximately

The respiratory quotient is the ratio of to .