Question 1

How are respiratory events regulated?

Accepted Answer

The answer of How are respiratory events regulated?...

Question 2

The intrapleural cavity is located inside the lungs.

Accepted Answer

A) True 
 B)False

Question 3

Match the lung volume/capacity terms, labelled a. through m., with the descriptions. (Options may be used more than once or not at all.)
a.vital capacity
b.respiratory rate
c.FEVS1U1B11S1U1B0
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
-maximum volume of air that can be moved in and out during a single breath

Accepted Answer

The answer of Match the lung volume/capacity terms, labelled a....

Question 4

The partial pressure of nitrogen in the atmosphere is greater than the partial pressure of oxygen in the atmosphere.

Accepted Answer

A) True 
 B)False

Question 5

The apneustic and pneumotaxic centres are located in the ____________________.

Accepted Answer

The answer of The apneustic and pneumotaxic centres are located...

Question 6

Exhaled air passes from the larynx through the trachea.

Accepted Answer

A) True 
 B)False

Question 7

Which activity below is NOT a respiratory event?

Accepted Answer

A) Carbon dioxide is exchanged in the alveoli. 
B) Gas exchange occurs between tissues and the blood. 
C)  Cells produce nitrogen by their metabolism. 
D)  Oxygen is exchanged in the alveoli. 
A) Carbon dioxide is exchanged in the alveoli. 
B) Gas exchange occurs between tissues and the blood. 
C)  Cells produce nitrogen by their metabolism. 
D)  Oxygen is exchanged in the alveoli.

Question 8

The abdominal muscles are expiratory muscles.

Accepted Answer

A) True 
 B)False

Question 9

The respiratory airways filter, warm, and humidify incoming air.

Accepted Answer

A) True 
 B)False

Question 10

Elastic recoil refers to the tendency of the chest wall to expand.

Accepted Answer

A) True 
 B)False

Question 11

The primary respiratory control centre that provides output to the respiratory muscles is located in the ____________________.

Accepted Answer

medulla of

Question 12

Which of the following does NOT make breathing more difficult?

Accepted Answer

A) increased pulmonary compliance 
B) increased airway resistance 
C)  decreased elastic recoil 
D)  decreased surfactant production 
A) increased pulmonary compliance 
B) increased airway resistance 
C)  decreased elastic recoil 
D)  decreased surfactant production

Question 13

If a person ascended a mountain where the atmospheric pressure was only 500 mmHg, assuming that the air consisted of 21 percent O2, what would the PO2 of the air be?

Accepted Answer

Question 14

What is the location of the receptors that are stimulated by a large drop in the blood PO2 level?

Accepted Answer

A) respiratory centre of the brain 
B) arterioles 
C)  tissue capillaries 
D)  carotid and aortic bodies 
A) respiratory centre of the brain 
B) arterioles 
C)  tissue capillaries 
D)  carotid and aortic bodies

Question 15

Systemic arterial PCO2 is less than tissue PCO2.

Accepted Answer

A) True 
 B)False

Question 16

The ____________________ is the maximum volume of air that can be inspired at the end of a normal, quiet expiration.

Accepted Answer

inspirator

Question 17

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 18

Match the physiological factors, labelled a. through e., with the descriptions. (Options may be used more than once or not at all.)
a.arterial PS1U1B1O2S1U1B0 between 60 to 100 mmHg
b.arterial PS1U1B1O2S1U1B0 less than 60 mmHg
c.arterial PS1U1B1CO2S1U1B0 increased above normal
d.brain ECF HS1U1P1+S1S1P0 increased above normal
e.arterial HS1U1P1+S1S1P0 increased above normal
-directly stimulates the central chemoreceptors

Accepted Answer

The answer of Match the physiological factors, labelled a. through...

Question 19

Arterial PO2 remains normal or may even increase slightly during exercise, despite the fact that O2 consumption by the tissues is greatly increased.

Accepted Answer

A) True 
 B)False

Question 20

Which are the muscles controlling inhalation?

Accepted Answer

A) diaphragm and internal intercostal muscles 
B) internal and external intercostal muscles 
C)  diaphragm and abdominal muscles 
D)  diaphragm and external intercostal muscles 
A) diaphragm and internal intercostal muscles 
B) internal and external intercostal muscles 
C)  diaphragm and abdominal muscles 
D)  diaphragm and external intercostal muscles

How are respiratory events regulated?

The intrapleural cavity is located inside the lungs.

The partial pressure of nitrogen in the atmosphere is greater than the partial pressure of oxygen in the atmosphere.

The apneustic and pneumotaxic centres are located in the ____________________.

Exhaled air passes from the larynx through the trachea.

Which activity below is NOT a respiratory event?

The abdominal muscles are expiratory muscles.

The respiratory airways filter, warm, and humidify incoming air.

Elastic recoil refers to the tendency of the chest wall to expand.

The primary respiratory control centre that provides output to the respiratory muscles is located in the ____________________.

Which of the following does NOT make breathing more difficult?

If a person ascended a mountain where the atmospheric pressure was only 500 mmHg, assuming that the air consisted of 21 percent O₂, what would the P_O2 of the air be?

What is the location of the receptors that are stimulated by a large drop in the blood P_O2 level?

Systemic arterial P_CO2 is less than tissue P_CO2.

The ____________________ is the maximum volume of air that can be inspired at the end of a normal, quiet expiration.

Which of these factors will NOT make breathing more difficult?

Arterial P_O2 remains normal or may even increase slightly during exercise, despite the fact that O₂ consumption by the tissues is greatly increased.

Which are the muscles controlling inhalation?

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; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

Exam 11: The Blood

How are respiratory events regulated?

The intrapleural cavity is located inside the lungs.

The partial pressure of nitrogen in the atmosphere is greater than the partial pressure of oxygen in the atmosphere.

The apneustic and pneumotaxic centres are located in the ____________________.

Exhaled air passes from the larynx through the trachea.

Which activity below is NOT a respiratory event?

The abdominal muscles are expiratory muscles.

The respiratory airways filter, warm, and humidify incoming air.

Elastic recoil refers to the tendency of the chest wall to expand.

The primary respiratory control centre that provides output to the respiratory muscles is located in the ____________________.

Which of the following does NOT make breathing more difficult?

If a person ascended a mountain where the atmospheric pressure was only 500 mmHg, assuming that the air consisted of 21 percent O2, what would the PO2 of the air be?

What is the location of the receptors that are stimulated by a large drop in the blood PO2 level?

Systemic arterial PCO2 is less than tissue PCO2.

The ____________________ is the maximum volume of air that can be inspired at the end of a normal, quiet expiration.

Which of these factors will NOT make breathing more difficult?

Arterial PO2 remains normal or may even increase slightly during exercise, despite the fact that O2 consumption by the tissues is greatly increased.

Which are the muscles controlling inhalation?

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; Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood Vessels and Blood Pressure

Body Defenses

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

Filters

If a person ascended a mountain where the atmospheric pressure was only 500 mmHg, assuming that the air consisted of 21 percent O₂, what would the P_O2 of the air be?

What is the location of the receptors that are stimulated by a large drop in the blood P_O2 level?

Systemic arterial P_CO2 is less than tissue P_CO2.

Arterial P_O2 remains normal or may even increase slightly during exercise, despite the fact that O₂ consumption by the tissues is greatly increased.