Question 1

Which of these events does NOT occur as a compensation for haemorrhage

Accepted Answer

A) shift of fluid from the interstitial fluid into the plasma 
B) reduced urinary output 
C) increased capillary permeability 
D) increased cardiac output 
A) shift of fluid from the interstitial fluid into the plasma 
B) reduced urinary output 
C) increased capillary permeability 
D) increased cardiac output

Question 2

Which of these factors would decrease total peripheral resistance

Accepted Answer

A) adrenal medulla hormones 
B) angiotensin II 
C) increased haematocrit 
D) anaphylaxis 
A) adrenal medulla hormones 
B) angiotensin II 
C) increased haematocrit 
D) anaphylaxis

Question 3

In an arteriole, if the blood vessel radius is two units and then is vasoconstricted to one unit, what is the result

Accepted Answer

A) The resistance decreases 16 times. 
B) The resistance increases 16 times. 
C) Flow will be increased. 
D) Flow will be neither increased nor decreased. 
A) The resistance decreases 16 times. 
B) The resistance increases 16 times. 
C) Flow will be increased. 
D) Flow will be neither increased nor decreased.

Question 4

Blood flows continuously through all capillaries.

Accepted Answer

A) True 
 B)False

Question 5

If arterial pressure is elevated, which of these responses will baroreceptor signals trigger

Accepted Answer

A) a fall in plasma angiotensin II levels 
B) increased activity in sympathetic nerves, causing peripheral vasoconstriction 
C) an increase in epinephrine secretion from the adrenal medulla 
D) increased total peripheral resistance 
A) a fall in plasma angiotensin II levels 
B) increased activity in sympathetic nerves, causing peripheral vasoconstriction 
C) an increase in epinephrine secretion from the adrenal medulla 
D) increased total peripheral resistance

Question 6

Decreased rate of firing in afferent nerves reaching the cardiovascular control centre _____ the parasympathetic nerve activity to the cardiovascular system.

Accepted Answer

Decreased rate of firing in afferent ner

Question 7

Match the types of vessel, labelled a. through e., with the function(s) they perform. (Options may be used more than once or not at all.)
-serve as a blood reservoir to accommodate variations in blood volume

Accepted Answer

A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics 
A) arteries 
B) arterioles 
C) capillaries 
D) veins 
E) lymphatics

Question 8

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.)
-loss of plasma volume due to haemorrhage

Accepted Answer

A) The change would increase ultrafiltration and decrease reabsorption. 
B) The change would decrease ultrafiltration and increase reabsorption. 
C) The change would increase both ultrafiltration and reabsorption. 
D) The change would decrease both ultrafiltration and reabsorption. 
E) The change would not alter ultrafiltration and reabsorption. 
A) The change would increase ultrafiltration and decrease reabsorption. 
B) The change would decrease ultrafiltration and increase reabsorption. 
C) The change would increase both ultrafiltration and reabsorption. 
D) The change would decrease both ultrafiltration and reabsorption. 
E) The change would not alter ultrafiltration and reabsorption.

Question 9

The extra fluid filtered but not reabsorbed at the capillary level is picked up by the lymphatics.

Accepted Answer

A) True 
 B)False

Question 10

Decreased arteriolar radius _____ the blood flow through the arteriole.

Accepted Answer

Decreased arteriolar radius reduces the

Question 11

Which of these vessels contain the highest percentage of total blood volume

Accepted Answer

A) pulmonary veins 
B) pulmonary arteries 
C) systemic veins 
D) systemic arteries 
A) pulmonary veins 
B) pulmonary arteries 
C) systemic veins 
D) systemic arteries

Question 12

Describe capillary filtration and reabsorption.

Accepted Answer

Capillary filtration and reabsorption ar

Question 13

Which of these statements does NOT apply to veins

Accepted Answer

A) They act as low-resistance passageways for blood flow from the tissues to the heart. 
B) They always contain deoxygenated blood. 
C) They contain one-way valves that prevent the backflow of blood. 
D) Their walls are thinner than those of arteries. 
A) They act as low-resistance passageways for blood flow from the tissues to the heart. 
B) They always contain deoxygenated blood. 
C) They contain one-way valves that prevent the backflow of blood. 
D) Their walls are thinner than those of arteries.

Question 14

Histamine released in injured areas produces local arteriolar vasodilation.

Accepted Answer

A) True 
 B)False

Question 15

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Accepted Answer

A) True 
 B)False

Question 16

Which of these properties does NOT refer to the arterioles

Accepted Answer

A) Their radii cannot be changed. 
B) Their walls contain a thick layer of smooth muscle. 
C) They are responsible for the distribution of blood flow to the various organs. 
D) They are the major vessels that contribute to total peripheral resistance. 
A) Their radii cannot be changed. 
B) Their walls contain a thick layer of smooth muscle. 
C) They are responsible for the distribution of blood flow to the various organs. 
D) They are the major vessels that contribute to total peripheral resistance.

Question 17

Arteriolar resistance is regulated by both local controls and extrinsic controls.

Accepted Answer

A) True 
 B)False

Question 18

Which of these factors would produce the greatest increase in blood flow

Accepted Answer

A) doubling the radius of the vessel 
B) doubling the difference in the pressure gradient within the vessel 
C) doubling the viscosity of the blood 
D) doubling the length of the vessel 
A) doubling the radius of the vessel 
B) doubling the difference in the pressure gradient within the vessel 
C) doubling the viscosity of the blood 
D) doubling the length of the vessel

Question 19

The process of ____________________ is responsible for determining the distribution of the extracellular fluid volume between the plasma and interstitial fluid.

Accepted Answer

The answer of The process of ____________________ is responsible for...

Question 20

Given the following forces acting at a given point across the capillary wall, what type of fluid movement will be taking place at that point
Capillary blood pressure = 32 mmHg
Plasma-colloid osmotic pressure = 23 mmHg
Interstitial fluid hydrostatic pressure = 1 mmHg
Interstitial fluid-colloid osmotic pressure = 0 mmHg

Accepted Answer

A) Ultrafiltration will occur with a net outward pressure of 8 mmHg. 
B) Ultrafiltration will occur with a net outward pressure of 10 mmHg. 
C) Ultrafiltration will occur with a net outward pressure of 56 mmHg. 
D) Reabsorption will occur with a net inward pressure of 24 mmHg. 
A) Ultrafiltration will occur with a net outward pressure of 8 mmHg. 
B) Ultrafiltration will occur with a net outward pressure of 10 mmHg. 
C) Ultrafiltration will occur with a net outward pressure of 56 mmHg. 
D) Reabsorption will occur with a net inward pressure of 24 mmHg.

Which of these events does NOT occur as a compensation for haemorrhage

Which of these factors would decrease total peripheral resistance

In an arteriole, if the blood vessel radius is two units and then is vasoconstricted to one unit, what is the result

Blood flows continuously through all capillaries.

If arterial pressure is elevated, which of these responses will baroreceptor signals trigger

Decreased rate of firing in afferent nerves reaching the cardiovascular control centre _____ the parasympathetic nerve activity to the cardiovascular system.

Match the types of vessel, labelled a. through e., with the function(s) they perform. (Options may be used more than once or not at all.) -serve as a blood reservoir to accommodate variations in blood volume

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.) -loss of plasma volume due to haemorrhage

The extra fluid filtered but not reabsorbed at the capillary level is picked up by the lymphatics.

Decreased arteriolar radius _____ the blood flow through the arteriole.

Which of these vessels contain the highest percentage of total blood volume

Describe capillary filtration and reabsorption.

Which of these statements does NOT apply to veins

Histamine released in injured areas produces local arteriolar vasodilation.

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Which of these properties does NOT refer to the arterioles

Arteriolar resistance is regulated by both local controls and extrinsic controls.

Which of these factors would produce the greatest increase in blood flow

The process of ____________________ is responsible for determining the distribution of the extracellular fluid volume between the plasma and interstitial fluid.

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

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters

Exam 9: Vascular Physiology

Which of these events does NOT occur as a compensation for haemorrhage

Which of these factors would decrease total peripheral resistance

In an arteriole, if the blood vessel radius is two units and then is vasoconstricted to one unit, what is the result

Blood flows continuously through all capillaries.

If arterial pressure is elevated, which of these responses will baroreceptor signals trigger

Decreased rate of firing in afferent nerves reaching the cardiovascular control centre _____ the parasympathetic nerve activity to the cardiovascular system.

Match the types of vessel, labelled a. through e., with the function(s) they perform. (Options may be used more than once or not at all.) -serve as a blood reservoir to accommodate variations in blood volume

Match the effects, labelled a. through e., that the changes in question would have on bulk flow. (Options may be used more than once or not at all.) -loss of plasma volume due to haemorrhage

The extra fluid filtered but not reabsorbed at the capillary level is picked up by the lymphatics.

Decreased arteriolar radius _____ the blood flow through the arteriole.

Which of these vessels contain the highest percentage of total blood volume

Describe capillary filtration and reabsorption.

Which of these statements does NOT apply to veins

Histamine released in injured areas produces local arteriolar vasodilation.

During exercise, a larger percentage of the cardiac output travels to the skin and skeletal muscles.

Which of these properties does NOT refer to the arterioles

Arteriolar resistance is regulated by both local controls and extrinsic controls.

Which of these factors would produce the greatest increase in blood flow

The process of ____________________ is responsible for determining the distribution of the extracellular fluid volume between the plasma and interstitial fluid.

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

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acidbase Balance

The Digestive System

Energy Balance and Temperature Regulation

The Reproductive System

Filters