Question 1

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

Accepted Answer

A) forced inspiration 
B) passive expiration 
C) forced expiration 
D) pneumothorax 
A) forced inspiration 
B) passive expiration 
C) forced expiration 
D) pneumothorax

Question 2

Describe how haemoglobin's saturation behaviour varies.

Accepted Answer

Hemoglobin's saturation behavior varies

Question 3

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.)
-represents the dominant control of ventilation

Accepted Answer

A) arterial PO₂ between 60 to 100 mmHg 
B) arterial PO₂ less than 60 mmHg 
C) arterial PCO₂ increased above normal 
D) brain ECF H⁺ increased above normal 
E) arterial H⁺ increased above normal 
A) arterial PO₂ between 60 to 100 mmHg 
B) arterial PO₂ less than 60 mmHg 
C) arterial PCO₂ increased above normal 
D) brain ECF H⁺ increased above normal 
E) arterial H⁺ increased above normal

Question 4

Which of these actions brings on normal expirations

Accepted Answer

A) contraction of the external intercostals 
B) contraction of the internal intercostals 
C) contraction of the diaphragm 
D) elastic recoil of stretched lung tissues and relaxation of inspiratory muscles 
A) contraction of the external intercostals 
B) contraction of the internal intercostals 
C) contraction of the diaphragm 
D) elastic recoil of stretched lung tissues and relaxation of inspiratory muscles

Question 5

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

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 6

Which of these factors will NOT result in lower oxygen saturation of haemoglobin

Accepted Answer

A) an increase in PO₂ 
B) an increase in temperature 
C) an increase in PCO₂ 
D) an increase in acidity 
A) an increase in PO₂ 
B) an increase in temperature 
C) an increase in PCO₂ 
D) an increase in acidity

Question 7

Which of these statements does NOT describe 2,3-bisphosphoglycerate

Accepted Answer

A) It is produced within red blood cells. 
B) Its production is inhibited by HbO₂. 
C) Its concentration gradually decreases whenever Hb in the arterial blood is chronically undersaturated. 
D) It affects the degree of binding of oxygen to haemoglobin. 
A) It is produced within red blood cells. 
B) Its production is inhibited by HbO₂. 
C) Its concentration gradually decreases whenever Hb in the arterial blood is chronically undersaturated. 
D) It affects the degree of binding of oxygen to haemoglobin.

Question 8

Respiration is accomplished entirely by the respiratory system.

Accepted Answer

A) True 
 B)False

Question 9

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.)
-carbon monoxide poisoning

Accepted Answer

A) anaemic hypoxia 
B) circulatory hypoxia 
C) histotoxic hypoxia 
D) hypoxic hypoxia 
A) anaemic hypoxia 
B) circulatory hypoxia 
C) histotoxic hypoxia 
D) hypoxic hypoxia

Question 10

Contraction of the ____________________ muscles elevates the ribs.

Accepted Answer

external i

Question 11

The subjective sensation of not getting enough air is known as ____________________.

Accepted Answer

The answer of The subjective sensation of not getting enough...

Question 12

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.)
-weakly stimulates the peripheral chemoreceptors

Accepted Answer

A) arterial PO₂ between 60 to 100 mmHg 
B) arterial PO₂ less than 60 mmHg 
C) arterial PCO₂ increased above normal 
D) brain ECF H⁺ increased above normal 
E) arterial H⁺ increased above normal 
A) arterial PO₂ between 60 to 100 mmHg 
B) arterial PO₂ less than 60 mmHg 
C) arterial PCO₂ increased above normal 
D) brain ECF H⁺ increased above normal 
E) arterial H⁺ increased above normal

Question 13

Inspiration is always an active process.

Accepted Answer

A) True 
 B)False

Question 14

Which of these statements does NOT refer to alveoli

Accepted Answer

A) They are the sites of gas exchange in the lungs. 
B) They are very thin and surrounded by a network of capillaries so that air and blood are separated by a very thin barrier. 
C) Type II cells secrete pulmonary surfactant. 
D) Their interdependence refers to air flow between adjacent alveoli through the pores of Kohn. 
A) They are the sites of gas exchange in the lungs. 
B) They are very thin and surrounded by a network of capillaries so that air and blood are separated by a very thin barrier. 
C) Type II cells secrete pulmonary surfactant. 
D) Their interdependence refers to air flow between adjacent alveoli through the pores of Kohn.

Question 15

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.)
-amount of air breathed in and out in one 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 16

____________________ shifts into the red blood cells to maintain electric neutrality when HCO₃- moves out of the cells down its concentration gradient.

Accepted Answer

The answer of ____________________ shifts into the red blood cells...

Question 17

Which of these statements describes the dorsal respiratory group (DRG)

Accepted Answer

A) It consists of both inspiratory neurons and expiratory neurons. 
B) Its neurons remain inactive during normal quiet breathing. 
C) It is called into play by the VRG when the demand for ventilation is increased. 
D) Inspiration takes place when its inspiratory neurons fire. 
A) It consists of both inspiratory neurons and expiratory neurons. 
B) Its neurons remain inactive during normal quiet breathing. 
C) It is called into play by the VRG when the demand for ventilation is increased. 
D) Inspiration takes place when its inspiratory neurons fire.

Question 18

What is the term for the entire sequence of events involved in the exchange of O₂ and CO₂ between body cells and the environment

Accepted Answer

A) internal respiration 
B) external respiration 
C) ventilation 
D) diffusion 
A) internal respiration 
B) external respiration 
C) ventilation 
D) diffusion

Question 19

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 20

A person has a tidal volume of 400 mL/breath, a respiratory rate of 14 breaths/minute, and an anatomic dead space volume of 120 mL.What is her pulmonary ventilation rate

Accepted Answer

A) 3000 mL/minute 
B) 3920 mL/minute 
C) 4260 mL/minute 
D) 5600 mL/minute 
A) 3000 mL/minute 
B) 3920 mL/minute 
C) 4260 mL/minute 
D) 5600 mL/minute

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

Describe how haemoglobin's saturation behaviour varies.

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.) -represents the dominant control of ventilation

Which of these actions brings on normal expirations

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

Which of these factors will NOT result in lower oxygen saturation of haemoglobin

Which of these statements does NOT describe 2,3-bisphosphoglycerate

Respiration is accomplished entirely by the respiratory system.

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) -carbon monoxide poisoning

Contraction of the ____________________ muscles elevates the ribs.

The subjective sensation of not getting enough air is known as ____________________.

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.) -weakly stimulates the peripheral chemoreceptors

Inspiration is always an active process.

Which of these statements does NOT refer to alveoli

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -amount of air breathed in and out in one minute

____________________ shifts into the red blood cells to maintain electric neutrality when HCO₃- moves out of the cells down its concentration gradient.

Which of these statements describes the dorsal respiratory group (DRG)

What is the term for the entire sequence of events involved in the exchange of O₂ and CO₂ between body cells and the environment

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

A person has a tidal volume of 400 mL/breath, a respiratory rate of 14 breaths/minute, and an anatomic dead space volume of 120 mL.What is her pulmonary ventilation rate

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Exam 12: The Respiratory System

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

Describe how haemoglobin's saturation behaviour varies.

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.) -represents the dominant control of ventilation

Which of these actions brings on normal expirations

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

Which of these factors will NOT result in lower oxygen saturation of haemoglobin

Which of these statements does NOT describe 2,3-bisphosphoglycerate

Respiration is accomplished entirely by the respiratory system.

Match the types of hypoxia, labelled a. through d., with the circumstances. (Options may be used more than once or not at all.) -carbon monoxide poisoning

Contraction of the ____________________ muscles elevates the ribs.

The subjective sensation of not getting enough air is known as ____________________.

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.) -weakly stimulates the peripheral chemoreceptors

Inspiration is always an active process.

Which of these statements does NOT refer to alveoli

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.) -amount of air breathed in and out in one minute

____________________ shifts into the red blood cells to maintain electric neutrality when HCO₃- moves out of the cells down its concentration gradient.

Which of these statements describes the dorsal respiratory group (DRG)

What is the term for the entire sequence of events involved in the exchange of O₂ and CO₂ between body cells and the environment

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

A person has a tidal volume of 400 mL/breath, a respiratory rate of 14 breaths/minute, and an anatomic dead space volume of 120 mL.What is her pulmonary ventilation rate

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