Question 1

Alveolar partial pressures do not fluctuate to any extent between inspiration and expiration.

Accepted Answer

A) True 
 B)False

Question 2

Which is true about alveolar at high altitudes?

Accepted Answer

A)  PO2 is higher than normal. 
B)  PO2 is lower than normal. 
C)  PCO2 is higher than normal. 
D)  PCO2 is lower than normal. 
A)  PO2 is higher than normal. 
B)  PO2 is lower than normal. 
C)  PCO2 is higher than normal. 
D)  PCO2 is lower than normal.

Question 3

Which statement is correct for the vital capacity?

Accepted Answer

A)  It is the volume normally entering or leaving the lungs during a single breath. 
B)  It is the maximum volume that can be moved in or out during a single breath. 
C)  It is the maximum volume the lungs can hold. 
D)  It is the minimum volume the lungs can hold. 
A)  It is the volume normally entering or leaving the lungs during a single breath. 
B)  It is the maximum volume that can be moved in or out during a single breath. 
C)  It is the maximum volume the lungs can hold. 
D)  It is the minimum volume the lungs can hold.

Question 4

The skeletal muscles for breathing are located in the walls of the lungs.

Accepted Answer

A) True 
 B)False

Question 5

Indicate the effect the following changes would have on the rate of gas transfer by using the answer code (options may be used more than once or not at all):
-the effect of tissue edema on O₂ and CO₂ exchange between the surrounding cells and blood

Accepted Answer

A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer. 
A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer.

Question 6

Describe how haemoglobin's saturation behaviour varies.

Accepted Answer

Hemoglobin's saturation behavior varies

Question 7

Which of the following does NOT promote elastic recoil of the lungs?

Accepted Answer

A)  elastic fibres in the lung 
B)  surface tension of the fluid lining the alveoli 
C)  pulmonary surfactant 
A)  elastic fibres in the lung 
B)  surface tension of the fluid lining the alveoli 
C)  pulmonary surfactant

Question 8

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

Accepted Answer

Question 9

According to ____________________ law,at any constant temperature,the pressure of a gas varies inversely with the volume of the gas.

Accepted Answer

The answer of According to ____________________ law,at any constant temperature,the...

Question 10

The exchange of O₂ and CO₂ between the external environment and tissue cells is known as ____________________.

Accepted Answer

external r

Question 11

Indicate the effect the following changes would have on the rate of gas transfer by using the answer code (options may be used more than once or not at all):
-the effect on O₂ exchange in the lungs by replacing part of the nitrogen with helium so that the inspired air consists of 60 percent N,19 percent He,and 21 percent O₂.

Accepted Answer

A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer. 
A) This change would increase the rate of gas transfer. 
B) This change would decrease the rate of gas transfer. 
C) This change would have no effect on the rate of gas transfer.

Question 12

Which of the following is TRUE about the partial pressure of oxygen?

Accepted Answer

A)  Atmospheric air averages 79 percent of total atmospheric pressure. 
B)  Blood is the most important factor that determines the extent to which O2 will combine with haemoglobin. 
C)  Arterial blood is decreased when haemoglobin preferentially combines with CO rather than O2. 
D)  Arterial blood is increased in high atmospheric pressure. 
A)  Atmospheric air averages 79 percent of total atmospheric pressure. 
B)  Blood is the most important factor that determines the extent to which O2 will combine with haemoglobin. 
C)  Arterial blood is decreased when haemoglobin preferentially combines with CO rather than O2. 
D)  Arterial blood is increased in high atmospheric pressure.

Question 13

When it relaxes,the diaphragm resumes an elevated,____________________-shaped position.

Accepted Answer

The answer of When it relaxes,the diaphragm resumes an elevated,____________________-shaped...

Question 14

Respiration is accomplished entirely by the respiratory system.

Accepted Answer

A) True 
 B)False

Question 15

What condition exists at high altitudes?

Accepted Answer

A)  histotoxic hypoxia 
B)  hypoxic hypoxia 
C)  anemic hypoxia 
D)  hypocapnia 
A)  histotoxic hypoxia 
B)  hypoxic hypoxia 
C)  anemic hypoxia 
D)  hypocapnia

Question 16

Patients suffering from chronic obstructive pulmonary disease generally have more trouble exhaling than inhaling.

Accepted Answer

A) True 
 B)False

Question 17

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

Accepted Answer

The answer of The most profound changes in thoracic volume...

Question 18

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

Accepted Answer

Collateral

Question 19

Indicate which chemical factor is responsible for the effect described by using the answer code (options may be used more than once or not at all):
-blood-borne factor that has no effect on 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 20

Bronchodilation of the air passages involves the _____ of their smooth muscle contraction and the _____ of their radius.

Accepted Answer

A)  decrease, decrease 
B)  decrease, increase 
C)  increase, decrease 
D)  increase, increase 
A)  decrease, decrease 
B)  decrease, increase 
C)  increase, decrease 
D)  increase, increase

Alveolar partial pressures do not fluctuate to any extent between inspiration and expiration.

Which is true about alveolar at high altitudes?

Which statement is correct for the vital capacity?

The skeletal muscles for breathing are located in the walls of the lungs.

Indicate the effect the following changes would have on the rate of gas transfer by using the answer code (options may be used more than once or not at all): -the effect of tissue edema on O₂ and CO₂ exchange between the surrounding cells and blood

Describe how haemoglobin's saturation behaviour varies.

Which of the following does NOT promote elastic recoil of the lungs?

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

According to ____________________ law,at any constant temperature,the pressure of a gas varies inversely with the volume of the gas.

The exchange of O₂ and CO₂ between the external environment and tissue cells is known as ____________________.

Which of the following is TRUE about the partial pressure of oxygen?

When it relaxes,the diaphragm resumes an elevated,____________________-shaped position.

Respiration is accomplished entirely by the respiratory system.

What condition exists at high altitudes?

Patients suffering from chronic obstructive pulmonary disease generally have more trouble exhaling than inhaling.

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

Indicate which chemical factor is responsible for the effect described by using the answer code (options may be used more than once or not at all): -blood-borne factor that has no effect on the peripheral chemoreceptors

Bronchodilation of the air passages involves the _ of their smooth muscle contraction and the _ of their radius.

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

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Exam 11: The Respiratory System

Alveolar partial pressures do not fluctuate to any extent between inspiration and expiration.

Which is true about alveolar at high altitudes?

Which statement is correct for the vital capacity?

The skeletal muscles for breathing are located in the walls of the lungs.

Indicate the effect the following changes would have on the rate of gas transfer by using the answer code (options may be used more than once or not at all): -the effect of tissue edema on O₂ and CO₂ exchange between the surrounding cells and blood

Describe how haemoglobin's saturation behaviour varies.

Which of the following does NOT promote elastic recoil of the lungs?

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

According to ____________________ law,at any constant temperature,the pressure of a gas varies inversely with the volume of the gas.

The exchange of O₂ and CO₂ between the external environment and tissue cells is known as ____________________.

Which of the following is TRUE about the partial pressure of oxygen?

When it relaxes,the diaphragm resumes an elevated,____________________-shaped position.

Respiration is accomplished entirely by the respiratory system.

What condition exists at high altitudes?

Patients suffering from chronic obstructive pulmonary disease generally have more trouble exhaling than inhaling.

The most profound changes in thoracic volume can be accomplished by contraction of the ____________________.

____________________ refers to air flow between adjacent alveoli through the pores of Kohn.

Indicate which chemical factor is responsible for the effect described by using the answer code (options may be used more than once or not at all): -blood-borne factor that has no effect on the peripheral chemoreceptors

Bronchodilation of the air passages involves the _____ of their smooth muscle contraction and the _____ of their radius.

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

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

Bronchodilation of the air passages involves the _ of their smooth muscle contraction and the _ of their radius.