Question 1

When blowing out the candles of a birthday cake you would use your abdominal muscles as expiratory muscles.

Accepted Answer

A) True 
 B)False

Question 2

The internal intercostal muscles are inspiratory muscles because they lift the ribs upward and outward to enlarge the thoracic cavity.

Accepted Answer

A) True 
 B)False

Question 3

Pulmonary surfactant

Accepted Answer

A)  is secreted by Type II alveolar cells. 
B)  decreases surface tension of the fluid lining the alveoli. 
C)  resists elastic recoil of the lungs. 
D)  is a combination of lipoproteins. 
E)  all of these answers. 
A)  is secreted by Type II alveolar cells. 
B)  decreases surface tension of the fluid lining the alveoli. 
C)  resists elastic recoil of the lungs. 
D)  is a combination of lipoproteins. 
E)  all of these answers.

Question 4

The intrapleural cavity is located inside the lungs.

Accepted Answer

A) True 
 B)False

Question 5

During which of the following would the intrapleural pressure be greater than atmospheric pressure?

Accepted Answer

A)  forced inspiration. 
B)  passive expiration. 
C)  forced expiration. 
D)  pneumothorax. 
E)  none of these answers. 
A)  forced inspiration. 
B)  passive expiration. 
C)  forced expiration. 
D)  pneumothorax. 
E)  none of these answers.

Question 6

Hemoglobin has the greatest affinity for

Accepted Answer

A)  carbon dioxide. 
B)  oxygen. 
C)  carbon monoxide. 
D)  nitrogen. 
E)  sulfur dioxide. 
A)  carbon dioxide. 
B)  oxygen. 
C)  carbon monoxide. 
D)  nitrogen. 
E)  sulfur dioxide.

Question 7

Expiration is always a passive process, whereas inspiration can be active or passive.

Accepted Answer

A) True 
 B)False

Question 8

Which ion exchanged with bicarbonate by the RBC?

Accepted Answer

A)  Na+ 
B)  K+ 
C)  Cl- 
D)  both Na+ and K+ 
E)  calcium 
A)  Na+ 
B)  K+ 
C)  Cl- 
D)  both Na+ and K+ 
E)  calcium

Question 9

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

Accepted Answer

The answer of As the resistance of the air passages...

Question 10

Intrapleural pressure is usually less than atmospheric pressure.

Accepted Answer

A) True 
 B)False

Question 11

Indicate the effect the following changes would have on oxygen release from Hb.
-nitrogen levels in the air being breathed is 80%

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 12

Carbon dioxide is transported in the blood in all the following ways except

Accepted Answer

A)  bicarbonate ion. 
B)  carbonic acid. 
C)  directly dissolved. 
D)  as a gas. 
E)  as carbaminohemoglobin. 
A)  bicarbonate ion. 
B)  carbonic acid. 
C)  directly dissolved. 
D)  as a gas. 
E)  as carbaminohemoglobin.

Question 13

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

Accepted Answer

The answer of The most profound changes in thoracic volume...

Question 14

Inspiration is always an active process.

Accepted Answer

A) True 
 B)False

Question 15

Indicate the effect the following changes would have on oxygen release from Hb.
-blood is passing by inactive tissue

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 16

Pulmonary surfactant increases alveolar surface tension and does not affect lung expansion.

Accepted Answer

A) True 
 B)False

Question 17

Normal expirations are brought on by

Accepted Answer

A)  contraction of the external intercostals. 
B)  contraction of the internal intercostals. 
C)  contraction of the diaphragm. 
D)  elastic recoil of inspiratory muscles. 
E)  elastic recoil of expiratory muscles. 
A)  contraction of the external intercostals. 
B)  contraction of the internal intercostals. 
C)  contraction of the diaphragm. 
D)  elastic recoil of inspiratory muscles. 
E)  elastic recoil of expiratory muscles.

Question 18

Bronchodilation of the air passages involves the ____ of their smooth muscle contraction and the ____ of their radius.

Accepted Answer

A)  decrease, decrease. 
B)  decrease, increase. 
C)  increase, decrease. 
D)  increase, increase. 
A)  decrease, decrease. 
B)  decrease, increase. 
C)  increase, decrease. 
D)  increase, increase.

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.
-amount of air that is available for exchange of gases with the blood per 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 20

Which activity below is not a respiratory event?

Accepted Answer

A)  carbon dioxide is exchanged in the alveoli. 
B)  cells produce nitrogen by their metabolism. 
C)  gas exchange between tissues and the blood. 
D)  oxygen is exchanged in the alveoli. 
E)  pulmonary ventilation. 
A)  carbon dioxide is exchanged in the alveoli. 
B)  cells produce nitrogen by their metabolism. 
C)  gas exchange between tissues and the blood. 
D)  oxygen is exchanged in the alveoli. 
E)  pulmonary ventilation.

When blowing out the candles of a birthday cake you would use your abdominal muscles as expiratory muscles.

The internal intercostal muscles are inspiratory muscles because they lift the ribs upward and outward to enlarge the thoracic cavity.

Pulmonary surfactant

The intrapleural cavity is located inside the lungs.

During which of the following would the intrapleural pressure be greater than atmospheric pressure?

Hemoglobin has the greatest affinity for

Expiration is always a passive process, whereas inspiration can be active or passive.

Which ion exchanged with bicarbonate by the RBC?

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

Intrapleural pressure is usually less than atmospheric pressure.

Indicate the effect the following changes would have on oxygen release from Hb. -nitrogen levels in the air being breathed is 80%

Carbon dioxide is transported in the blood in all the following ways except

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

Inspiration is always an active process.

Indicate the effect the following changes would have on oxygen release from Hb. -blood is passing by inactive tissue

Pulmonary surfactant increases alveolar surface tension and does not affect lung expansion.

Normal expirations are brought on by

Bronchodilation of the air passages involves the of their smooth muscle contraction and the of their radius.

Which activity below is not a respiratory event?

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

When blowing out the candles of a birthday cake you would use your abdominal muscles as expiratory muscles.

The internal intercostal muscles are inspiratory muscles because they lift the ribs upward and outward to enlarge the thoracic cavity.

Pulmonary surfactant

The intrapleural cavity is located inside the lungs.

During which of the following would the intrapleural pressure be greater than atmospheric pressure?

Hemoglobin has the greatest affinity for

Expiration is always a passive process, whereas inspiration can be active or passive.

Which ion exchanged with bicarbonate by the RBC?

As the resistance of the air passages increases, the airflow through them ____________________ if the pressure gradient remains constant.

Intrapleural pressure is usually less than atmospheric pressure.

Indicate the effect the following changes would have on oxygen release from Hb. -nitrogen levels in the air being breathed is 80%

Carbon dioxide is transported in the blood in all the following ways except

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

Inspiration is always an active process.

Indicate the effect the following changes would have on oxygen release from Hb. -blood is passing by inactive tissue

Pulmonary surfactant increases alveolar surface tension and does not affect lung expansion.

Normal expirations are brought on by

Bronchodilation of the air passages involves the ____ of their smooth muscle contraction and the ____ of their radius.

Which activity below is not a respiratory event?

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

Bronchodilation of the air passages involves the of their smooth muscle contraction and the of their radius.