Question 1

As the concentration of red blood cells increases in the blood, the viscosity of the blood increases.

Accepted Answer

A) True 
 B)False

Question 2

Normally most of the blood at any one time is in the capillary beds, because this is where material exchange is taking place.

Accepted Answer

A) True 
 B)False

Question 3

Edema could result from

Accepted Answer

A)  blockage of lymph vessels, increased capillary blood pressure, and decreased blood osmotic pressure 
B)  blockage of lymph vessels and increased capillary blood pressure 
C)  increased capillary blood pressure and decreased blood osmotic pressure 
D)  blockage of lymph vessels and decreased blood osmotic pressure 
E)  none of these 
A)  blockage of lymph vessels, increased capillary blood pressure, and decreased blood osmotic pressure 
B)  blockage of lymph vessels and increased capillary blood pressure 
C)  increased capillary blood pressure and decreased blood osmotic pressure 
D)  blockage of lymph vessels and decreased blood osmotic pressure 
E)  none of these

Question 4

Which factor promotes an increase in blood pressure?

Accepted Answer

A)  epinephrine 
B)  aldosterone 
C)  angiotensin II 
D)  water retention 
E)  all of these 
A)  epinephrine 
B)  aldosterone 
C)  angiotensin II 
D)  water retention 
E)  all of these

Question 5

The pressure measured in the arteries just before the next ventricular ejection of blood is

Accepted Answer

A)  systolic pressure 
B)  diastolic pressure 
C)  pulse pressure 
D)  mean pressure 
E)  none of these 
A)  systolic pressure 
B)  diastolic pressure 
C)  pulse pressure 
D)  mean pressure 
E)  none of these

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

Complete each of the following statments.
Total peripheral resistance is primarily dependent on the degree of arteriolar ____________________.

Accepted Answer

The answer of Complete each of the following statments.
Total peripheral...

Question 8

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

Accepted Answer

A) True 
 B)False

Question 9

Histamine released in injured areas produces local arteriolar vasodilation.

Accepted Answer

A) True 
 B)False

Question 10

For the following questions, choose the appropriate letter from the answer code below to make the statement true. $\begin{array}{ll}
a.&\text {increases }\
b.&\text {inhibits or decreases: }\
c.&\text { has no effect on}\
\end{array}$
 Increased heart rate ____ cardiac output.

Accepted Answer

The answer of For the following questions, choose the appropriate...

Question 11

If the diastolic pressure and systolic pressure were both increased by 10 mm Hg, the pulse pressure would also be increased by 10 mm Hg.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A)  lymph vessels 
B)  arterioles 
C)  capillaries 
D)  veins 
E)  lymph vessels and veins 
A)  lymph vessels 
B)  arterioles 
C)  capillaries 
D)  veins 
E)  lymph vessels and veins

Question 13

Cardiovascular changes associated with exercise can be accounted for by local metabolic influences on skeletal muscle arterioles coupled with adjustments via the baroreceptor reflex.

Accepted Answer

A) True 
 B)False

Question 14

The principle force that causes movement of fluid from the tissues into the capillaries is the

Accepted Answer

A)  hydrostatic pressure of the venous blood 
B)  hydrostatic pressure of the arterial blood 
C)  osmotic pressure created by the plasma proteins 
D)  pressure of the lymph 
E)  none of these 
A)  hydrostatic pressure of the venous blood 
B)  hydrostatic pressure of the arterial blood 
C)  osmotic pressure created by the plasma proteins 
D)  pressure of the lymph 
E)  none of these

Question 15

Resistance increases when

Accepted Answer

A)  radius decreases 
B)  length decreases 
C)  viscosity decreases 
D)  red blood cell count decreases 
E)  none of these 
A)  radius decreases 
B)  length decreases 
C)  viscosity decreases 
D)  red blood cell count decreases 
E)  none of these

Question 16

Blood flows continuously through all capillaries.

Accepted Answer

A) True 
 B)False

Question 17

For the following questions, choose the appropriate letter from the answer code below to make the statement true. $\begin{array}{ll}
a.&\text {increases }\
b.&\text {inhibits or decreases: }\
c.&\text { has no effect on}\
\end{array}$
 Increased sympathetic nerve activity ____ the rate of depolarization of the SA node.

Accepted Answer

The answer of For the following questions, choose the appropriate...

Question 18

What is the primary method by which materials such as O2, CO2, and nutrients are exchanged between the blood and surrounding tissues?

Accepted Answer

A)  passive diffusion of substances across the capillary wall down their concentration gradients 
B)  active transport of materials across the capillary wall 
C)  osmotic pressure drawing water and solutes out of the capillary and bringing these dissolved nutrients into contact with the tissue cells 
D)  processes of ultrafiltration and reabsorption 
E)  bulk flow 
A)  passive diffusion of substances across the capillary wall down their concentration gradients 
B)  active transport of materials across the capillary wall 
C)  osmotic pressure drawing water and solutes out of the capillary and bringing these dissolved nutrients into contact with the tissue cells 
D)  processes of ultrafiltration and reabsorption 
E)  bulk flow

Question 19

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

Accepted Answer

A) True 
 B)False

Question 20

The baroreceptors are usually no longer functional in the presence of hypertension.

Accepted Answer

A) True 
 B)False

Exam 10: The Blood Vessels and Blood Pressure

As the concentration of red blood cells increases in the blood, the viscosity of the blood increases.

Normally most of the blood at any one time is in the capillary beds, because this is where material exchange is taking place.

Edema could result from

Which factor promotes an increase in blood pressure?

The pressure measured in the arteries just before the next ventricular ejection of blood is

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

Complete each of the following statments. Total peripheral resistance is primarily dependent on the degree of arteriolar ____________________.

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

Histamine released in injured areas produces local arteriolar vasodilation.

For the following questions, choose the appropriate letter from the answer code below to make the statement true. a. increases b. inhibits or decreases: c. has no effect on Increased heart rate ____ cardiac output.

If the diastolic pressure and systolic pressure were both increased by 10 mm Hg, the pulse pressure would also be increased by 10 mm Hg.

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

Cardiovascular changes associated with exercise can be accounted for by local metabolic influences on skeletal muscle arterioles coupled with adjustments via the baroreceptor reflex.

The principle force that causes movement of fluid from the tissues into the capillaries is the

Resistance increases when

Blood flows continuously through all capillaries.

For the following questions, choose the appropriate letter from the answer code below to make the statement true. a. increases b. inhibits or decreases: c. has no effect on Increased sympathetic nerve activity ____ the rate of depolarization of the SA node.

What is the primary method by which materials such as O2, CO2, and nutrients are exchanged between the blood and surrounding tissues?

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

The baroreceptors are usually no longer functional in the presence of hypertension.

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

A--The Peripheral Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

What is the primary method by which materials such as O₂, CO₂, and nutrients are exchanged between the blood and surrounding tissues?