Question 1

What is the term for the minimum volume of air that remains in the lungs after a maximal expiration?

Accepted Answer

A) tidal volume 
B) functional residual capacity 
C)  residual volume 
D)  vital capacity 
A) tidal volume 
B) functional residual capacity 
C)  residual volume 
D)  vital capacity

Question 2

Contraction of the ____________________ muscles elevates the ribs.

Accepted Answer

external i

Question 3

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.)
a.arterial PS1U1B1O2S1U1B0 between 60 to 100 mmHg
b.arterial PS1U1B1O2S1U1B0 less than 60 mmHg
c.arterial PS1U1B1CO2S1U1B0 increased above normal
d.brain ECF HS1U1P1+S1S1P0 increased above normal
e.arterial HS1U1P1+S1S1P0 increased above normal
-represents the dominant control of ventilation

Accepted Answer

The answer of Match the physiological factors, labelled a. through...

Question 4

The ____________________ effect refers to the reduced affinity of Hb for O2 in the presence of increased CO2 and H+.

Accepted Answer

Question 5

Which of these statements does NOT correctly describe hypercapnia?

Accepted Answer

A) It refers to excess CO2 in the arterial blood. 
B) It is seen with most pulmonary diseases. 
C)  It may be caused by hypoventilation. 
D)  It occurs when CO2 is blown off to the atmosphere at a rate faster than it is being produced by the tissues. 
A) It refers to excess CO2 in the arterial blood. 
B) It is seen with most pulmonary diseases. 
C)  It may be caused by hypoventilation. 
D)  It occurs when CO2 is blown off to the atmosphere at a rate faster than it is being produced by the tissues.

Question 6

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.)
a.vital capacity
b.respiratory rate
c.FEVS1U1B11S1U1B0
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
-volume of air that can be expired during the first second of expiration during determination of vital capacity

Accepted Answer

The answer of Match the lung volume/capacity terms, labelled a....

Question 7

Match the effects on the rate of gas transfer, labelled a. through c., with the changes listed. (Options may be used more than once or not at all.)
a.This change would increase the rate of gas transfer.
b.This change would decrease the rate of gas transfer.
c.This change would have no effect on the rate of gas transfer.
-the effect of emphysema on O2 and CO2 exchange within the lungs

Accepted Answer

Question 8

Which of these statements correctly describes haemoglobin?

Accepted Answer

A) It combines preferentially with O2 over any other molecules. 
B) When combined with carbon dioxide, it is known as oxyhaemoglobin. 
C)  It plays a critical role in determining the amount of O2 that is exchanged between alveoli and blood. 
D)  It combines preferentially with CO2 when partial pressure of O2 is high in arterial blood. 
A) It combines preferentially with O2 over any other molecules. 
B) When combined with carbon dioxide, it is known as oxyhaemoglobin. 
C)  It plays a critical role in determining the amount of O2 that is exchanged between alveoli and blood. 
D)  It combines preferentially with CO2 when partial pressure of O2 is high in arterial blood.

Question 9

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.)
a.vital capacity
b.respiratory rate
c.FEVS1U1B11S1U1B0
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
-breaths/minute

Accepted Answer

The answer of Match the lung volume/capacity terms, labelled a....

Question 10

Intrapleural pressure is negative to maintain lung inflation.

Accepted Answer

A) True 
 B)False

Question 11

The peripheral chemoreceptors are located in the ____________________ and aortic bodies.

Accepted Answer

The answer of The peripheral chemoreceptors are located in the...

Question 12

Pulmonary surfactant reduces the work of breathing and increases lung stability by increasing alveolar surface tension.

Accepted Answer

A) True 
 B)False

Question 13

Pores of Kohn permit air flow between adjacent alveoli, a process known as collateral ventilation.

Accepted Answer

A) True 
 B)False

Question 14

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 15

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.)
a.arterial PS1U1B1O2S1U1B0 between 60 to 100 mmHg
b.arterial PS1U1B1O2S1U1B0 less than 60 mmHg
c.arterial PS1U1B1CO2S1U1B0 increased above normal
d.brain ECF HS1U1P1+S1S1P0 increased above normal
e.arterial HS1U1P1+S1S1P0 increased above normal
-directly depresses the central chemoreceptors

Accepted Answer

The answer of Match the physiological factors, labelled a. through...

Question 16

The skeletal muscles for breathing are located in the walls of the lungs.

Accepted Answer

A) True 
 B)False

Question 17

A highly compliant lung is easier to stretch than a less compliant one.

Accepted Answer

A) True 
 B)False

Question 18

The pneumotaxic and apneustic centres are located in the cerebellum.

Accepted Answer

A) True 
 B)False

Question 19

____________________ refers to air in the pleural cavity.

Accepted Answer

The answer of ____________________ refers to air in the pleural...

Question 20

Which of these statements does NOT indicate why a chloride shift occurs in red blood cells?

Accepted Answer

A) to prevent development of an electrical gradient 
B) in response to bicarbonate movement into the plasma 
C)  to prevent an increase in blood pH 
A) to prevent development of an electrical gradient 
B) in response to bicarbonate movement into the plasma 
C)  to prevent an increase in blood pH

What is the term for the minimum volume of air that remains in the lungs after a maximal expiration?

Contraction of the ____________________ muscles elevates the ribs.

The ____________________ effect refers to the reduced affinity of Hb for O₂ in the presence of increased CO₂ and H⁺.

Which of these statements does NOT correctly describe hypercapnia?

Which of these statements correctly describes haemoglobin?

Intrapleural pressure is negative to maintain lung inflation.

The peripheral chemoreceptors are located in the ____________________ and aortic bodies.

Pulmonary surfactant reduces the work of breathing and increases lung stability by increasing alveolar surface tension.

Pores of Kohn permit air flow between adjacent alveoli, a process known as collateral ventilation.

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

The skeletal muscles for breathing are located in the walls of the lungs.

A highly compliant lung is easier to stretch than a less compliant one.

The pneumotaxic and apneustic centres are located in the cerebellum.

____________________ refers to air in the pleural cavity.

Which of these statements does NOT indicate why a chloride shift occurs in red blood cells?

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; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 11: The Blood

What is the term for the minimum volume of air that remains in the lungs after a maximal expiration?

Contraction of the ____________________ muscles elevates the ribs.

The ____________________ effect refers to the reduced affinity of Hb for O2 in the presence of increased CO2 and H+.

Which of these statements does NOT correctly describe hypercapnia?

Which of these statements correctly describes haemoglobin?

Intrapleural pressure is negative to maintain lung inflation.

The peripheral chemoreceptors are located in the ____________________ and aortic bodies.

Pulmonary surfactant reduces the work of breathing and increases lung stability by increasing alveolar surface tension.

Pores of Kohn permit air flow between adjacent alveoli, a process known as collateral ventilation.

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

The skeletal muscles for breathing are located in the walls of the lungs.

A highly compliant lung is easier to stretch than a less compliant one.

The pneumotaxic and apneustic centres are located in the cerebellum.

____________________ refers to air in the pleural cavity.

Which of these statements does NOT indicate why a chloride shift occurs in red blood cells?

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; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

The ____________________ effect refers to the reduced affinity of Hb for O₂ in the presence of increased CO₂ and H⁺.