Question 1

The vessels with the greatest total cross-sectional area are the arteries.

Accepted Answer

A) True 
 B)False

Question 2

MATCHING
Indicate which type of vessel performs the function listed by using the answer code (options may be used more than once or not at all):
-portion of the circulatory system through which the velocity of blood flow is the slowest

Accepted Answer

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

Question 3

Which factor does not positively affect blood pressure?

Accepted Answer

A)  skeletal muscle activity 
B)  aldosterone release 
C)  renin release 
D)  calcium reabsorption 
A)  skeletal muscle activity 
B)  aldosterone release 
C)  renin release 
D)  calcium reabsorption

Question 4

Choose the appropriate letter from the answer code to make the statement correct.
-Increased venous return ____________________ the end-diastolic volume.

Accepted Answer

A) stimulates or increases 
B) decreases or inhibits 
C) has no effect on 
A) stimulates or increases 
B) decreases or inhibits 
C) has no effect on

Question 5

What is endothelial-derived relaxing factor (EDRF)

Accepted Answer

A)  a local chemical mediator released from the endothelial cells that induces contraction of arteriolar smooth muscle in the vicinity 
B)  adenosine 
C)  nitric oxide 
A)  a local chemical mediator released from the endothelial cells that induces contraction of arteriolar smooth muscle in the vicinity 
B)  adenosine 
C)  nitric oxide

Question 6

Primary hypertension refers to chronically elevated blood pressure of unknown origin.

Accepted Answer

A) True 
 B)False

Question 7

Which 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 8

Indicate whether arteriolar vasoconstriction or vasodilation would occur in the tissue in question by using the answer code (options may be used more than once or not at all):
-histamine release in an injured tissue

Accepted Answer

A) would produce arteriolar vasoconstriction 
B) would produce arteriolar vasodilation 
C) would not cause any change in arteriolar calibre 
A) would produce arteriolar vasoconstriction 
B) would produce arteriolar vasodilation 
C) would not cause any change in arteriolar calibre

Question 9

Organs that do not adjust the blood are more vulnerable to reductions in blood flow than are organs that perform homeostatic functions on the blood.

Accepted Answer

A) True 
 B)False

Question 10

Which two pressures act to move fluid into the capillary?

Accepted Answer

A)  interstitial-fluid hydrostatic pressure and capillary blood pressure 
B)  blood-colloid osmotic pressure and interstitial-fluid-colloid osmotic pressure 
C)  interstitial-fluid hydrostatic pressure and blood-colloid osmotic pressure 
D)  interstitial-fluid hydrostatic pressure and interstitial-fluid-colloid osmotic pressure 
A)  interstitial-fluid hydrostatic pressure and capillary blood pressure 
B)  blood-colloid osmotic pressure and interstitial-fluid-colloid osmotic pressure 
C)  interstitial-fluid hydrostatic pressure and blood-colloid osmotic pressure 
D)  interstitial-fluid hydrostatic pressure and interstitial-fluid-colloid osmotic pressure

Question 11

Which of the following statements concerning the pulse pressure is correct?

Accepted Answer

A)  difference between the systolic and diastolic pressures 
B)  average pressure throughout the cardiac cycle 
C)  maximum pressure exerted in the arteries 
D)  minimum pressure exerted in the arteries 
A)  difference between the systolic and diastolic pressures 
B)  average pressure throughout the cardiac cycle 
C)  maximum pressure exerted in the arteries 
D)  minimum pressure exerted in the arteries

Question 12

Indicate what effect the change in question would have on bulk flow by using the answer code (options may be used more than once or not at all):
-expanded plasma volume due to excessive fluid intake

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 13

Indicate the relative comparison of each of the paired items by writing the appropriate letter in the blank by using the answer code (options may be used more than once or not at all):
a.A is greater than B.
b.B is greater than A.
c.A and B are equal.
**A.blood flow through an arteriole upon increased sympathetic activity
B.blood flow through an arteriole upon decreased sympathetic activity
**A.blood flow through a vein upon increased sympathetic activity
B.blood flow through a vein upon decreased sympathetic activity
**A.velocity of blood flow through the veins
B.velocity of blood flow through the capillaries
**A.local arteriolar radius in the presence of local decreased O2 concentration and increased CO2 concentration
B.local arteriolar radius with normal local concentration of O2 and CO2
**A.circulation through the skin during exercise
B.circulation through the skin at rest
**A.circulation to the brain at rest
B.circulation to the brain during an examination
**A.net ultrafiltration pressure at the arteriolar end of the capillary
B.net reabsorption pressure at the venous end of the capillary

Accepted Answer

Question 14

Increased sympathetic stimulation causes generalized vasoconstriction.

Accepted Answer

A) True 
 B)False

Question 15

Cardiac contraction induces blood flow in the arterial system,but it has no influence on blood flow in the veins.

Accepted Answer

A) True 
 B)False

Question 16

More blood is delivered to the tissues during ventricular systole than during ventricular diastole.

Accepted Answer

A) True 
 B)False

Question 17

Which factor is NOT involved in promoting venous return to the heart?

Accepted Answer

A)  Parasympathetic stimulation decreases venous pressure. 
B)  The skeletal muscle pump squeezes blood through the veins. 
C)  The respiratory pump provides a pressure gradient between the lower and chest veins. 
D)  There is vasodilation of veins. 
A)  Parasympathetic stimulation decreases venous pressure. 
B)  The skeletal muscle pump squeezes blood through the veins. 
C)  The respiratory pump provides a pressure gradient between the lower and chest veins. 
D)  There is vasodilation of veins.

Question 18

Arterial walls contain a thick layer of smooth muscle and an abundance of collagen and elastin fibres.

Accepted Answer

A) True 
 B)False

Question 19

Sympathetic activity controls the degree of resistance in arterioles.

Accepted Answer

A) True 
 B)False

Question 20

At any point in time,most of the blood flow in the body is contained in the capillaries.

Accepted Answer

A) True 
 B)False

The vessels with the greatest total cross-sectional area are the arteries.

MATCHING Indicate which type of vessel performs the function listed by using the answer code (options may be used more than once or not at all): -portion of the circulatory system through which the velocity of blood flow is the slowest

Which factor does not positively affect blood pressure?

Choose the appropriate letter from the answer code to make the statement correct. -Increased venous return ____________________ the end-diastolic volume.

What is endothelial-derived relaxing factor (EDRF)

Primary hypertension refers to chronically elevated blood pressure of unknown origin.

Which vessels contain the highest percentage of total blood volume?

Indicate whether arteriolar vasoconstriction or vasodilation would occur in the tissue in question by using the answer code (options may be used more than once or not at all): -histamine release in an injured tissue

Organs that do not adjust the blood are more vulnerable to reductions in blood flow than are organs that perform homeostatic functions on the blood.

Which two pressures act to move fluid into the capillary?

Which of the following statements concerning the pulse pressure is correct?

Indicate what effect the change in question would have on bulk flow by using the answer code (options may be used more than once or not at all): -expanded plasma volume due to excessive fluid intake

Increased sympathetic stimulation causes generalized vasoconstriction.

Cardiac contraction induces blood flow in the arterial system,but it has no influence on blood flow in the veins.

More blood is delivered to the tissues during ventricular systole than during ventricular diastole.

Which factor is NOT involved in promoting venous return to the heart?

Arterial walls contain a thick layer of smooth muscle and an abundance of collagen and elastin fibres.

Sympathetic activity controls the degree of resistance in arterioles.

At any point in time,most of the blood flow in the body is contained in the capillaries.

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

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

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Exam 8: Vascular Physiology

The vessels with the greatest total cross-sectional area are the arteries.

MATCHING Indicate which type of vessel performs the function listed by using the answer code (options may be used more than once or not at all): -portion of the circulatory system through which the velocity of blood flow is the slowest

Which factor does not positively affect blood pressure?

Choose the appropriate letter from the answer code to make the statement correct. -Increased venous return ____________________ the end-diastolic volume.

What is endothelial-derived relaxing factor (EDRF)

Primary hypertension refers to chronically elevated blood pressure of unknown origin.

Which vessels contain the highest percentage of total blood volume?

Indicate whether arteriolar vasoconstriction or vasodilation would occur in the tissue in question by using the answer code (options may be used more than once or not at all): -histamine release in an injured tissue

Organs that do not adjust the blood are more vulnerable to reductions in blood flow than are organs that perform homeostatic functions on the blood.

Which two pressures act to move fluid into the capillary?

Which of the following statements concerning the pulse pressure is correct?

Indicate what effect the change in question would have on bulk flow by using the answer code (options may be used more than once or not at all): -expanded plasma volume due to excessive fluid intake

Increased sympathetic stimulation causes generalized vasoconstriction.

Cardiac contraction induces blood flow in the arterial system,but it has no influence on blood flow in the veins.

More blood is delivered to the tissues during ventricular systole than during ventricular diastole.

Which factor is NOT involved in promoting venous return to the heart?

Arterial walls contain a thick layer of smooth muscle and an abundance of collagen and elastin fibres.

Sympathetic activity controls the degree of resistance in arterioles.

At any point in time,most of the blood flow in the body is contained in the capillaries.

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

The Blood

Body Defences

The Respiratory System

The Urinary System

Fluid and Acid Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine Glands

The Reproductive System

Filters