Question 1

Expiration is always a passive process.

Accepted Answer

A) True 
 B)False

Question 2

Which of these factors 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 3

If the vital capacity of a person is 4800 mL, while the tidal volume is 500 mL and the ERV is 900 mL, the IRV is ____________________ mL.

Accepted Answer

The answer of If the vital capacity of a person...

Question 4

During external respiration, the PCO₂ is greater in the blood of the pulmonary capillaries than in the alveoli.

Accepted Answer

A) True 
 B)False

Question 5

A slight decrease in arterial PO₂ below normal is a more potent stimulus toward increasing respiration than is a slight increase in PCO₂ above normal.

Accepted Answer

A) True 
 B)False

Question 6

Which of these statements 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 the 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 the partial pressure of O₂ is high in arterial blood.

Question 7

____________________ refers to a collapsed lung.

Accepted Answer

The answer of ____________________ refers to a collapsed lung....

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

The volume occupied by the conducting airways is known as the ____________________.

Accepted Answer

The answer of The volume occupied by the conducting airways...

Question 10

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 11

What is the location of the brain region that provides output to the respiratory muscles

Accepted Answer

A) pons 
B) medulla 
C) cerebral cortex 
D) hypothalamus 
A) pons 
B) medulla 
C) cerebral cortex 
D) hypothalamus

Question 12

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.)
-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 13

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

Accepted Answer

A) True 
 B)False

Question 14

What factors influence the amount of gas exchange occurring at the respiratory membrane

Accepted Answer

The amount of gas exchange occurring at

Question 15

Which structure serves as a common passageway for both the respiratory and the digestive systems

Accepted Answer

A) nose 
B) pharynx 
C) trachea 
D) esophagus 
A) nose 
B) pharynx 
C) trachea 
D) esophagus

Question 16

Which of the following is NOT a function of the respiratory system

Accepted Answer

A) to transport O₂ to the tissues 
B) to contribute to maintenance of normal acid-base balance 
C) to provide a route for heat and water elimination 
D) to enable speech, singing, and other vocalization 
A) to transport O₂ to the tissues 
B) to contribute to maintenance of normal acid-base balance 
C) to provide a route for heat and water elimination 
D) to enable speech, singing, and other vocalization

Question 17

Which of these statements does NOT describe haemoglobin

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 red blood cells. 
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 red blood cells.

Question 18

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 19

According to the law of LaPlace, the magnitude of the inward-directed collapsing pressure of a spherical bubble is directly proportional to both the surface tension and the radius of the bubble.

Accepted Answer

A) True 
 B)False

Question 20

Which of these statements applies to the percent of haemoglobin saturation

Accepted Answer

A) It decreases as PO₂ increases. 
B) It decreases as body temperature decreases. 
C) It decreases as H⁺ decreases. 
D) It decreases as PCO₂ increases. 
A) It decreases as PO₂ increases. 
B) It decreases as body temperature decreases. 
C) It decreases as H⁺ decreases. 
D) It decreases as PCO₂ increases.

Expiration is always a passive process.

Which of these factors will NOT make breathing more difficult

If the vital capacity of a person is 4800 mL, while the tidal volume is 500 mL and the ERV is 900 mL, the IRV is ____________________ mL.

During external respiration, the PCO₂ is greater in the blood of the pulmonary capillaries than in the alveoli.

A slight decrease in arterial PO₂ below normal is a more potent stimulus toward increasing respiration than is a slight increase in PCO₂ above normal.

Which of these statements describes haemoglobin

____________________ refers to a collapsed lung.

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

The volume occupied by the conducting airways is known as the ____________________.

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

What is the location of the brain region that provides output to the respiratory muscles

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -extra volume of air that can be maximally inspired over and above the tidal volume

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

What factors influence the amount of gas exchange occurring at the respiratory membrane

Which structure serves as a common passageway for both the respiratory and the digestive systems

Which of the following is NOT a function of the respiratory system

Which of these statements does NOT describe haemoglobin

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.

According to the law of LaPlace, the magnitude of the inward-directed collapsing pressure of a spherical bubble is directly proportional to both the surface tension and the radius of the bubble.

Which of these statements applies to the percent of haemoglobin saturation

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The Endocrine Glands

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Exam 12: The Respiratory System

Expiration is always a passive process.

Which of these factors will NOT make breathing more difficult

If the vital capacity of a person is 4800 mL, while the tidal volume is 500 mL and the ERV is 900 mL, the IRV is ____________________ mL.

During external respiration, the PCO₂ is greater in the blood of the pulmonary capillaries than in the alveoli.

A slight decrease in arterial PO₂ below normal is a more potent stimulus toward increasing respiration than is a slight increase in PCO₂ above normal.

Which of these statements describes haemoglobin

____________________ refers to a collapsed lung.

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

The volume occupied by the conducting airways is known as the ____________________.

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

What is the location of the brain region that provides output to the respiratory muscles

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -extra volume of air that can be maximally inspired over and above the tidal volume

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

What factors influence the amount of gas exchange occurring at the respiratory membrane

Which structure serves as a common passageway for both the respiratory and the digestive systems

Which of the following is NOT a function of the respiratory system

Which of these statements does NOT describe haemoglobin

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.

According to the law of LaPlace, the magnitude of the inward-directed collapsing pressure of a spherical bubble is directly proportional to both the surface tension and the radius of the bubble.

Which of these statements applies to the percent of haemoglobin saturation

The Foundation of Physiology

Cell Physiology

The Central Nervous System

The Peripheral Nervous System: Sensory, Autonomic, Somatic

Principles of Endocrinology: The Central Endocrine Glands

The Endocrine Glands

Muscle Physiology

Cardiac Physiology

Vascular Physiology

The Blood

Body Defences

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters