Question 1

Which vessels can act as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume?

Accepted Answer

A)  Arteries 
B)  Arterioles 
C)  Capillaries 
D)  Veins 
A)  Arteries 
B)  Arterioles 
C)  Capillaries 
D)  Veins

Question 2

Which of the following factors is most important in matching the blood flow through a specific tissue with the metabolic needs of that tissue?

Accepted Answer

A)  Sympathetically induced vasoconstriction of the arteries supplying a tissue forces more blood to flow into the tissue. 
B)  Parasympathetically induced vasodilation of the capillaries within a tissue allows more blood to flow into the tissue. 
C)  Local changes within a tissue resulting from increased metabolic activity can produce local arteriolar vasodilation to allow more blood to flow into the tissue. 
D)  Widespread venous vasoconstriction allows blood to dam up at the tissue level. 
A)  Sympathetically induced vasoconstriction of the arteries supplying a tissue forces more blood to flow into the tissue. 
B)  Parasympathetically induced vasodilation of the capillaries within a tissue allows more blood to flow into the tissue. 
C)  Local changes within a tissue resulting from increased metabolic activity can produce local arteriolar vasodilation to allow more blood to flow into the tissue. 
D)  Widespread venous vasoconstriction allows blood to dam up at the tissue level.

Question 3

If driving pressure is constant,flow will double when the radius increases by twofold.

Accepted Answer

A) True 
 B)False

Question 4

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):
-serve as low-resistance passageways from the tissues to the heart

Accepted Answer

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

Question 5

Which of the following is NOT a compensation mechanism for blood loss?

Accepted Answer

A)  fluid shift from ICF to plasma 
B)  venous vasoconstriction 
C)  lowered angiotensin II production 
D)  Thirst 
A)  fluid shift from ICF to plasma 
B)  venous vasoconstriction 
C)  lowered angiotensin II production 
D)  Thirst

Question 6

By F = P/R,as resistance increases,the flow increases if the pressure is constant.

Accepted Answer

A) True 
 B)False

Question 7

All the fluid forced out of the capillaries is filtered through the lymphatics before being returned to the venous blood.

Accepted Answer

A) True 
 B)False

Question 8

A deficiency of ____________________ in the blood reduces the blood-colloid osmotic pressure.

Accepted Answer

The answer of A deficiency of ____________________ in the blood...

Question 9

A metarteriole is located between an arteriole and venule.

Accepted Answer

A) True 
 B)False

Question 10

How is salt balance tied into blood pressure control?

Accepted Answer

The answer of How is salt balance tied into blood...

Question 11

Which term refers to a chronic state of increased arterial pressure?

Accepted Answer

A)  Shock 
B)  congestive heart failure 
C)  pulmonary edema 
D)  Hypertension 
A)  Shock 
B)  congestive heart failure 
C)  pulmonary edema 
D)  Hypertension

Question 12

Which statement is correct for vascular resistance?

Accepted Answer

A)  It is a measure of the hindrance to blood flow through a vessel caused by friction between the moving fluid and stationary vascular walls. 
B)  It is doubled when the radius of the vessel is wider than normal. 
C)  It is inversely proportionate to the blood viscosity. 
D)  It is increased when blood vessel length is shorter. 
A)  It is a measure of the hindrance to blood flow through a vessel caused by friction between the moving fluid and stationary vascular walls. 
B)  It is doubled when the radius of the vessel is wider than normal. 
C)  It is inversely proportionate to the blood viscosity. 
D)  It is increased when blood vessel length is shorter.

Question 13

Which of the following is NOT a characteristic feature of capillaries?

Accepted Answer

A)  thin walls 
B)  short distance between adjacent vessels 
C)  distensible walls 
D)  slow blood velocity 
A)  thin walls 
B)  short distance between adjacent vessels 
C)  distensible walls 
D)  slow blood velocity

Question 14

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):
-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 15

Which statement is true about velocity of blood flow in capillaries?

Accepted Answer

A)  It is greater than that for arterioles. 
B)  It is greater than that for veins. 
C)  It is slow enough to favour adequate exchange. 
D)  It is less than that for arterioles. 
A)  It is greater than that for arterioles. 
B)  It is greater than that for veins. 
C)  It is slow enough to favour adequate exchange. 
D)  It is less than that for arterioles.

Question 16

Which change will increase fluid reabsorption by the capillaries?

Accepted Answer

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

Question 17

Match the term with the correct characteristic by using the answer code:
-increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

Accepted Answer

A) reactive hyperemia 
B) active hyperemia 
C) pressure autoregulation 
D) extrinsic control 
A) reactive hyperemia 
B) active hyperemia 
C) pressure autoregulation 
D) extrinsic control

Question 18

Which of the following local chemical factors will NOT cause vasodilation of arterioles?

Accepted Answer

A)  decreased K+ 
B)  increased CO2 
C)  increased acid 
D)  decreased O2 
A)  decreased K+ 
B)  increased CO2 
C)  increased acid 
D)  decreased O2

Question 19

What does binding of epinephrine to alpha receptors cause?

Accepted Answer

A)  smooth muscle relaxation in arteries 
B)  smooth muscle relaxation in skeletal muscle arteries 
C)  smooth muscle constriction in skeletal muscle arteries 
D)  smooth muscle relaxation in coronary arteries 
A)  smooth muscle relaxation in arteries 
B)  smooth muscle relaxation in skeletal muscle arteries 
C)  smooth muscle constriction in skeletal muscle arteries 
D)  smooth muscle relaxation in coronary arteries

Question 20

Because the capillaries have the smallest radii of any vascular segment,they are the major resistive vessels.

Accepted Answer

A) True 
 B)False

Which vessels can act as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume?

Which of the following factors is most important in matching the blood flow through a specific tissue with the metabolic needs of that tissue?

If driving pressure is constant,flow will double when the radius increases by twofold.

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): -serve as low-resistance passageways from the tissues to the heart

Which of the following is NOT a compensation mechanism for blood loss?

By F = P/R,as resistance increases,the flow increases if the pressure is constant.

All the fluid forced out of the capillaries is filtered through the lymphatics before being returned to the venous blood.

A deficiency of ____________________ in the blood reduces the blood-colloid osmotic pressure.

A metarteriole is located between an arteriole and venule.

How is salt balance tied into blood pressure control?

Which term refers to a chronic state of increased arterial pressure?

Which statement is correct for vascular resistance?

Which of the following is NOT a characteristic feature of capillaries?

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): -serve as a blood reservoir to accommodate variations in blood volume

Which statement is true about velocity of blood flow in capillaries?

Which change will increase fluid reabsorption by the capillaries?

Match the term with the correct characteristic by using the answer code: -increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

Which of the following local chemical factors will NOT cause vasodilation of arterioles?

What does binding of epinephrine to alpha receptors cause?

Because the capillaries have the smallest radii of any vascular segment,they are the major resistive vessels.

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

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Fluid and Acid Base Balance

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Exam 8: Vascular Physiology

Which vessels can act as a blood reservoir by adjusting their total capacity to accommodate variations in blood volume?

Which of the following factors is most important in matching the blood flow through a specific tissue with the metabolic needs of that tissue?

If driving pressure is constant,flow will double when the radius increases by twofold.

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): -serve as low-resistance passageways from the tissues to the heart

Which of the following is NOT a compensation mechanism for blood loss?

By F = P/R,as resistance increases,the flow increases if the pressure is constant.

All the fluid forced out of the capillaries is filtered through the lymphatics before being returned to the venous blood.

A deficiency of ____________________ in the blood reduces the blood-colloid osmotic pressure.

A metarteriole is located between an arteriole and venule.

How is salt balance tied into blood pressure control?

Which term refers to a chronic state of increased arterial pressure?

Which statement is correct for vascular resistance?

Which of the following is NOT a characteristic feature of capillaries?

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): -serve as a blood reservoir to accommodate variations in blood volume

Which statement is true about velocity of blood flow in capillaries?

Which change will increase fluid reabsorption by the capillaries?

Match the term with the correct characteristic by using the answer code: -increase in blood flow to a tissue that occurs after removal of an occlusion of its blood supply

Which of the following local chemical factors will NOT cause vasodilation of arterioles?

What does binding of epinephrine to alpha receptors cause?

Because the capillaries have the smallest radii of any vascular segment,they are the major resistive vessels.

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