Question 1

The largest total cross-sectional area is found in the

Accepted Answer

A)  aorta. 
B)  arterioles. 
C)  capillaries. 
D)  venules. 
E)  veins. 
A)  aorta. 
B)  arterioles. 
C)  capillaries. 
D)  venules. 
E)  veins.

Question 2

What category of controls (local or extrinsic) is primarily responsible for matching tissue blood flow with the metabolic needs of the specific tissue involved? ____________________

Accepted Answer

The answer of What category of controls (local or extrinsic)...

Question 3

The larger arteries assist with systemic blood flow to tissues by:

Accepted Answer

A)  contracting their tunica intima. 
B)  beating their semilunar-type valves. 
C)  by associating with large veins. 
D)  elastic recoil of their walls. 
E)  continuous vasoconstriction. 
A)  contracting their tunica intima. 
B)  beating their semilunar-type valves. 
C)  by associating with large veins. 
D)  elastic recoil of their walls. 
E)  continuous vasoconstriction.

Question 4

Polycythemia is associated with blood viscosity increases.

Accepted Answer

A) True 
 B)False

Question 5

The colloidal osmotic pressure in the blood plasma draws fluid into the capillary.

Accepted Answer

A) True 
 B)False

Question 6

The sounds heard when determining blood pressure are the same as the heart sounds associated with valve closure.

Accepted Answer

A) True 
 B)False

Question 7

There is normally a net gain of fluid in the capillary at the venular end.

Accepted Answer

A) True 
 B)False

Question 8

Indicate what effect the changes in question would have on blood flow, using the following answer code:
-Increasing the resistance of a vessel.

Accepted Answer

A) This change would increase blood flow. 
B) This change would decrease blood flow. 
C) This change would have no effect on blood flow. 
A) This change would increase blood flow. 
B) This change would decrease blood flow. 
C) This change would have no effect on blood flow.

Question 9

Indicate what effect the change in question would have on bulk flow using the answer code below:
-loss of plasma protein in the urine due to kidney disease

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 10

Vasoconstriction

Accepted Answer

A)  causes a decrease in resistance. 
B)  occurs when there is a decrease in the radius of a vessel. 
C)  due to a decrease in sympathetic activity. 
D)  two of these answers. 
E)  all of these answers. 
A)  causes a decrease in resistance. 
B)  occurs when there is a decrease in the radius of a vessel. 
C)  due to a decrease in sympathetic activity. 
D)  two of these answers. 
E)  all of these answers.

Question 11

The arteries

Accepted Answer

A)  serve as rapid-transit passageways from the tissues to the heart because of their large radii. 
B)  act as a blood reservoir because they have the capacity to store large volumes of blood with little change in their internal pressure. 
C)  are the major resistive vessels of the vasculature. 
D)  are the site of exchange between the blood and surrounding tissues. 
E)  none of these answers. 
A)  serve as rapid-transit passageways from the tissues to the heart because of their large radii. 
B)  act as a blood reservoir because they have the capacity to store large volumes of blood with little change in their internal pressure. 
C)  are the major resistive vessels of the vasculature. 
D)  are the site of exchange between the blood and surrounding tissues. 
E)  none of these answers.

Question 12

Vessels associated with this organ are almost entirely under the control of local mechanisms:

Accepted Answer

A)  heart 
B)  kidney 
C)  liver 
D)  skin 
E)  brain 
A)  heart 
B)  kidney 
C)  liver 
D)  skin 
E)  brain

Question 13

Indicate the relative comparison of each of the paired items by writing the appropriate letter in the blank using the following answer code:
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 exercise.

Accepted Answer

b,
a, 
a,

Question 14

During exercise, blood flow to the digestive tract is increased by dilation of the arterioles of the digestive tract.

Accepted Answer

A) True 
 B)False

Question 15

Through which vessel is the velocity of blood flow the slowest?

Accepted Answer

A)  aorta 
B)  arterioles 
C)  capillaries 
D)  venules 
E)  veins 
A)  aorta 
B)  arterioles 
C)  capillaries 
D)  venules 
E)  veins

Question 16

The capillaries have an overall, tremendous cross-sectional area with a relatively fast flow rate.

Accepted Answer

A) True 
 B)False

Question 17

The pulse pressure is the maximum pressure exerted in the arteries.

Accepted Answer

A) True 
 B)False

Question 18

Indicate what effect the changes in question would have on blood flow, using the following answer code:
-Increasing the pressure gradient in a vessel.

Accepted Answer

A) This change would increase blood flow. 
B) This change would decrease blood flow. 
C) This change would have no effect on blood flow. 
A) This change would increase blood flow. 
B) This change would decrease blood flow. 
C) This change would have no effect on blood flow.

Question 19

Which of the following does not occur to compensate for a fall in blood pressure below normal?

Accepted Answer

A)  cardiac output is increased. 
B)  total peripheral resistance is decreased. 
C)  heart rate is increased. 
D)  venous vasoconstriction occurs. 
E)  stroke volume is increased. 
A)  cardiac output is increased. 
B)  total peripheral resistance is decreased. 
C)  heart rate is increased. 
D)  venous vasoconstriction occurs. 
E)  stroke volume is increased.

Question 20

When the heart is not ejecting blood into the arterial system, the pressure in the arteries falls to zero as blood drains off into the rest of the vasculature.

Accepted Answer

A) True 
 B)False

The largest total cross-sectional area is found in the

What category of controls (local or extrinsic) is primarily responsible for matching tissue blood flow with the metabolic needs of the specific tissue involved? ____________________

The larger arteries assist with systemic blood flow to tissues by:

Polycythemia is associated with blood viscosity increases.

The colloidal osmotic pressure in the blood plasma draws fluid into the capillary.

The sounds heard when determining blood pressure are the same as the heart sounds associated with valve closure.

There is normally a net gain of fluid in the capillary at the venular end.

Indicate what effect the changes in question would have on blood flow, using the following answer code: -Increasing the resistance of a vessel.

Indicate what effect the change in question would have on bulk flow using the answer code below: -loss of plasma protein in the urine due to kidney disease

Vasoconstriction

The arteries

Vessels associated with this organ are almost entirely under the control of local mechanisms:

During exercise, blood flow to the digestive tract is increased by dilation of the arterioles of the digestive tract.

Through which vessel is the velocity of blood flow the slowest?

The capillaries have an overall, tremendous cross-sectional area with a relatively fast flow rate.

The pulse pressure is the maximum pressure exerted in the arteries.

Indicate what effect the changes in question would have on blood flow, using the following answer code: -Increasing the pressure gradient in a vessel.

Which of the following does not occur to compensate for a fall in blood pressure below normal?

When the heart is not ejecting blood into the arterial system, the pressure in the arteries falls to zero as blood drains off into the rest of the vasculature.

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 and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

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Exam 10: The Blood Vessels and Blood Pressure

The largest total cross-sectional area is found in the

What category of controls (local or extrinsic) is primarily responsible for matching tissue blood flow with the metabolic needs of the specific tissue involved? ____________________

The larger arteries assist with systemic blood flow to tissues by:

Polycythemia is associated with blood viscosity increases.

The colloidal osmotic pressure in the blood plasma draws fluid into the capillary.

The sounds heard when determining blood pressure are the same as the heart sounds associated with valve closure.

There is normally a net gain of fluid in the capillary at the venular end.

Indicate what effect the changes in question would have on blood flow, using the following answer code: -Increasing the resistance of a vessel.

Indicate what effect the change in question would have on bulk flow using the answer code below: -loss of plasma protein in the urine due to kidney disease

Vasoconstriction

The arteries

Vessels associated with this organ are almost entirely under the control of local mechanisms:

During exercise, blood flow to the digestive tract is increased by dilation of the arterioles of the digestive tract.

Through which vessel is the velocity of blood flow the slowest?

The capillaries have an overall, tremendous cross-sectional area with a relatively fast flow rate.

The pulse pressure is the maximum pressure exerted in the arteries.

Indicate what effect the changes in question would have on blood flow, using the following answer code: -Increasing the pressure gradient in a vessel.

Which of the following does not occur to compensate for a fall in blood pressure below normal?

When the heart is not ejecting blood into the arterial system, the pressure in the arteries falls to zero as blood drains off into the rest of the vasculature.

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 and Special Senses

The Peripheral Nervous System: Efferent Division

Muscle Physiology

Cardiac Physiology

The Blood and Body Defenses

The Respiratory System

The Urinary System

Fluid and Acid-Base Balance

The Digestive System

Energy Balance and Temperature Regulation

The Endocrine System

The Reproductive System

Filters