Question 1

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.

Question 2

Systemic arterial $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ is less than tissue $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ .

Accepted Answer

A) True 
 B)False

Question 3

Complete each of the following statments.
The respiratory quotient is the ratio of ____________________ to ____________________.

Accepted Answer

CO2 produc

Question 4

Complete each of the following statments.
____________________ is the transient cessation of breathing.

Accepted Answer

The answer of Complete each of the following statments.
____________________ is...

Question 5

Gases are transported during external respiration by active transport mechanisms.

Accepted Answer

A) True 
 B)False

Question 6

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

Accepted Answer

The answer of Complete each of the following statments.
The ____________________...

Question 7

The entire sequence of events involved in the exchange of O2 and CO2 between the body cells and the environment is known as

Accepted Answer

A)  internal respiration 
B)  external respiration 
C)  ventilation 
D)  breathing 
E)  ventilation and breathing 
A)  internal respiration 
B)  external respiration 
C)  ventilation 
D)  breathing 
E)  ventilation and breathing

Question 8

Respiration is reflexively inhibited by alkalosis caused by a reduction in concentration of non-carbon-dioxide-generated H+, the result of which is accumulation of H+-generating carbon dioxide to restore the acid-base balance toward normal.

Accepted Answer

A) True 
 B)False

Question 9

During external respiration, the $\mathrm { P } _ { 0 _ { 2 } }$ is greater in the alveoli than in the blood of the pulmonary capillaries.

Accepted Answer

A) True 
 B)False

Question 10

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.

Question 11

Which of the following spirometry results would not be expected for a patient suffering from obstructive lung disease?

Accepted Answer

A)  normal total lung capacity 
B)  increased functional residual capacity 
C)  decreased residual volume 
D)  decreased FEV1 
E)  none of these 
A)  normal total lung capacity 
B)  increased functional residual capacity 
C)  decreased residual volume 
D)  decreased FEV1 
E)  none of these

Question 12

$\mathrm { P } _ { 0 _ { 2 } }$ in the blood

Accepted Answer

A)  refers to the pressure exerted by the amount of oxygen dissolved in the blood 
B)  is the most important factor determining the percent saturation of hemoglobin 
C)  is normal in carbon monoxide poisoning 
D)  refers to the pressure exerted by the amount of oxygen dissolved in the blood and is normal in carbon monoxide poisoning 
E)  all of these 
A)  refers to the pressure exerted by the amount of oxygen dissolved in the blood 
B)  is the most important factor determining the percent saturation of hemoglobin 
C)  is normal in carbon monoxide poisoning 
D)  refers to the pressure exerted by the amount of oxygen dissolved in the blood and is normal in carbon monoxide poisoning 
E)  all of these

Question 13

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O2 content in the blood can become lethally low.

Accepted Answer

A) True 
 B)False

Question 14

At a constant temperature, the pressure that a gas exerts depends on the volume that it occupies.

Accepted Answer

A) True 
 B)False

Question 15

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 16

Complete each of the following statments.
The ____________________ is the maximum volume of air that can be inspired at the end of a normal quiet expiration.

Accepted Answer

inspirator

Question 17

Complete each of the following statments.
The exchange of O2 and CO2 between the external environment and lungs is known as ____________________.

Accepted Answer

external r

Question 18

The 500 ml of air that is inspired is the same 500 ml of air that enters the alveoli during a single breath.

Accepted Answer

A) True 
 B)False

Question 19

If 20% of the air is composed of O2, the partial pressure of oxygen at sea level where atmospheric pressure is 760 mm Hg is

Accepted Answer

A)  20 mm Hg 
B)  760 mm Hg 
C)  70 mm Hg 
D)  350 mm Hg 
E)  152 mm Hg 
A)  20 mm Hg 
B)  760 mm Hg 
C)  70 mm Hg 
D)  350 mm Hg 
E)  152 mm Hg

Question 20

Complete each of the following statments.
A(n) ____________________ pressure across the chest wall influences lung movements.

Accepted Answer

The answer of Complete each of the following statments.
A(n) ____________________...

Exam 13: A--The Respiratory System

Which activity below is not a respiratory event?

Systemic arterial PCo2\mathrm { P } _ { \mathrm { Co } _ { 2 } }PCo2​​ is less than tissue PCo2\mathrm { P } _ { \mathrm { Co } _ { 2 } }PCo2​​ .

Complete each of the following statments. The respiratory quotient is the ratio of ____________________ to ____________________.

Complete each of the following statments. ____________________ is the transient cessation of breathing.

Gases are transported during external respiration by active transport mechanisms.

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

The entire sequence of events involved in the exchange of O2 and CO2 between the body cells and the environment is known as

Respiration is reflexively inhibited by alkalosis caused by a reduction in concentration of non-carbon-dioxide-generated H+, the result of which is accumulation of H+-generating carbon dioxide to restore the acid-base balance toward normal.

During external respiration, the P02\mathrm { P } _ { 0 _ { 2 } }P02​​ is greater in the alveoli than in the blood of the pulmonary capillaries.

Select the incorrect statement about hemoglobin.

Which of the following spirometry results would not be expected for a patient suffering from obstructive lung disease?

P02\mathrm { P } _ { 0 _ { 2 } }P02​​ in the blood

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O2 content in the blood can become lethally low.

At a constant temperature, the pressure that a gas exerts depends on the volume that it occupies.

Hemoglobin has the greatest affinity for

Complete each of the following statments. The ____________________ is the maximum volume of air that can be inspired at the end of a normal quiet expiration.

Complete each of the following statments. The exchange of O2 and CO2 between the external environment and lungs is known as ____________________.

The 500 ml of air that is inspired is the same 500 ml of air that enters the alveoli during a single breath.

If 20% of the air is composed of O2, the partial pressure of oxygen at sea level where atmospheric pressure is 760 mm Hg is

Complete each of the following statments. A(n) ____________________ pressure across the chest wall influences lung movements.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

Systemic arterial $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ is less than tissue $\mathrm { P } _ { \mathrm { Co } _ { 2 } }$ .

Complete each of the following statments. The respiratory quotient is the ratio of to .

The entire sequence of events involved in the exchange of O₂ and CO₂ between the body cells and the environment is known as

Respiration is reflexively inhibited by alkalosis caused by a reduction in concentration of non-carbon-dioxide-generated H⁺, the result of which is accumulation of H⁺-generating carbon dioxide to restore the acid-base balance toward normal.

During external respiration, the $\mathrm { P } _ { 0 _ { 2 } }$ is greater in the alveoli than in the blood of the pulmonary capillaries.

$\mathrm { P } _ { 0 _ { 2 } }$ in the blood

The peripheral chemoreceptors are not activated during carbon monoxide poisoning despite the fact that the total O₂ content in the blood can become lethally low.

Complete each of the following statments. The exchange of O₂ and CO₂ between the external environment and lungs is known as ____________________.

If 20% of the air is composed of O₂, the partial pressure of oxygen at sea level where atmospheric pressure is 760 mm Hg is