Question 1

Which factor will NOT make breathing more difficult?

Accepted Answer

A)  increased pulmonary compliance 
B)  increased airway resistance 
C)  decreased elastic recoil 
D)  pleural effusion 
A)  increased pulmonary compliance 
B)  increased airway resistance 
C)  decreased elastic recoil 
D)  pleural effusion

Question 2

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 3

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

Accepted Answer

A) True 
 B)False

Question 4

Intrapleural pressure normally does not equilibrate with the intra-alveolar pressure.

Accepted Answer

A) True 
 B)False

Question 5

At the systemic capillaries,the PO₂ is in the range of the steep portion of the O₂-Hb curve.

Accepted Answer

A) True 
 B)False

Question 6

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 7

The abdominal muscles are expiratory muscles.

Accepted Answer

A) True 
 B)False

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

Systemic venous PO₂ is _____ alveolar PO₂,and systemic venous PO₂ is _____ alveolar PO₂.

Accepted Answer

A)  greater than, greater than 
B)  greater than, less than 
C)  less than, greater than 
D)  less than, less than 
A)  greater than, greater than 
B)  greater than, less than 
C)  less than, greater than 
D)  less than, less than

Question 10

If the alveolar PO₂ is 100 mmHg,what will be the PO₂ of the blood leaving the pulmonary capillaries in a normal person?

Accepted Answer

A)  40 mmHg 
B)  46 mmHg 
C)  100 mmHg 
D)  760 mmHg 
A)  40 mmHg 
B)  46 mmHg 
C)  100 mmHg 
D)  760 mmHg

Question 11

____________________ is the transient cessation of breathing.

Accepted Answer

The answer of ____________________ is the transient cessation of breathing....

Question 12

If 20 percent of the air is composed of O₂,what is the partial pressure of oxygen at sea level where atmospheric pressure is 760 mmHg?

Accepted Answer

A)  20 mmHg 
B)  70 mmHg 
C)  152 mmHg 
D)  760 Hg 
A)  20 mmHg 
B)  70 mmHg 
C)  152 mmHg 
D)  760 Hg

Question 13

Which type of chronic obstructive pulmonary disease is characterized by a breakdown of alveolar walls and collapse of the smaller airways?

Accepted Answer

A)  Asthma 
B)  chronic bronchitis 
C)  Emphysema 
D)  bronchiectasis 
A)  Asthma 
B)  chronic bronchitis 
C)  Emphysema 
D)  bronchiectasis

Question 14

Which statement would be correct if the oxygen-haemoglobin dissociation curve is shifted to the right?

Accepted Answer

A)  Partial pressure of oxygen is increased. 
B)  pH is decreased. 
C)  Temperature is decreased. 
D)  Partial pressure of carbon dioxide is decreased. 
A)  Partial pressure of oxygen is increased. 
B)  pH is decreased. 
C)  Temperature is decreased. 
D)  Partial pressure of carbon dioxide is decreased.

Question 15

____________________ refers to air in the pleural cavity.

Accepted Answer

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

Question 16

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 17

To produce a normal tidal volume,the expiratory muscles must be stimulated.

Accepted Answer

A) True 
 B)False

Question 18

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial PCO₂.

Accepted Answer

A) True 
 B)False

Question 19

MATCHING
Indicate which lung volume or capacity is being described in the column below by using the answer code (options may be used more than once or not at all):
-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 20

What does NOT occur during expiration when a person is breathing quietly?

Accepted Answer

A)  The size of the thoracic cavity is reduced. 
B)  The intra-alveolar pressure becomes greater than atmospheric pressure. 
C)  Air flows out of the lungs. 
D)  The expiratory muscles contract. 
A)  The size of the thoracic cavity is reduced. 
B)  The intra-alveolar pressure becomes greater than atmospheric pressure. 
C)  Air flows out of the lungs. 
D)  The expiratory muscles contract.

Which factor will NOT make breathing more difficult?

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.

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

Intrapleural pressure normally does not equilibrate with the intra-alveolar pressure.

At the systemic capillaries,the PO₂ is in the range of the steep portion of the O₂-Hb curve.

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

The abdominal muscles are expiratory muscles.

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

Systemic venous PO₂ is _ alveolar PO₂,and systemic venous PO₂ is _ alveolar PO₂.

If the alveolar PO₂ is 100 mmHg,what will be the PO₂ of the blood leaving the pulmonary capillaries in a normal person?

____________________ is the transient cessation of breathing.

If 20 percent of the air is composed of O₂,what is the partial pressure of oxygen at sea level where atmospheric pressure is 760 mmHg?

Which type of chronic obstructive pulmonary disease is characterized by a breakdown of alveolar walls and collapse of the smaller airways?

Which statement would be correct if the oxygen-haemoglobin dissociation curve is shifted to the right?

____________________ refers to air in the pleural cavity.

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

To produce a normal tidal volume,the expiratory muscles must be stimulated.

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial PCO₂.

MATCHING Indicate which lung volume or capacity is being described in the column below by using the answer code (options may be used more than once or not at all): -the volume of air entering or leaving the lungs in a single breath during quiet breathing

What does NOT occur during expiration when a person is breathing quietly?

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Urinary System

Fluid and Acid Base Balance

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Energy Balance and Temperature Regulation

The Endocrine Glands

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Exam 11: The Respiratory System

Which factor will NOT make breathing more difficult?

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.

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

Intrapleural pressure normally does not equilibrate with the intra-alveolar pressure.

At the systemic capillaries,the PO₂ is in the range of the steep portion of the O₂-Hb curve.

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

The abdominal muscles are expiratory muscles.

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

Systemic venous PO₂ is _____ alveolar PO₂,and systemic venous PO₂ is _____ alveolar PO₂.

If the alveolar PO₂ is 100 mmHg,what will be the PO₂ of the blood leaving the pulmonary capillaries in a normal person?

____________________ is the transient cessation of breathing.

If 20 percent of the air is composed of O₂,what is the partial pressure of oxygen at sea level where atmospheric pressure is 760 mmHg?

Which type of chronic obstructive pulmonary disease is characterized by a breakdown of alveolar walls and collapse of the smaller airways?

Which statement would be correct if the oxygen-haemoglobin dissociation curve is shifted to the right?

____________________ refers to air in the pleural cavity.

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

To produce a normal tidal volume,the expiratory muscles must be stimulated.

The primary factor believed to be responsible for stimulating the profound and abrupt increase in ventilation during exercise is increased arterial PCO₂.

MATCHING Indicate which lung volume or capacity is being described in the column below by using the answer code (options may be used more than once or not at all): -the volume of air entering or leaving the lungs in a single breath during quiet breathing

What does NOT occur during expiration when a person is breathing quietly?

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System

Principals of Endocrinology; The Central Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters

Systemic venous PO₂ is _ alveolar PO₂,and systemic venous PO₂ is _ alveolar PO₂.