Question 1

The two determinants of mean arterial pressure are ____ and ____.

Accepted Answer

A)  stroke volume; compliance of vessel walls 
B)  heart rate; stroke volume 
C)  heart rate; end-diastolic volume 
D)  cardiac output; total peripheral resistance 
E)  none of these 
A)  stroke volume; compliance of vessel walls 
B)  heart rate; stroke volume 
C)  heart rate; end-diastolic volume 
D)  cardiac output; total peripheral resistance 
E)  none of these D

Question 2

Complete each of the following statments.
Normally capillary filtration exceeds reabsorption by about ____________________ liters daily.

Accepted Answer

three

Question 3

The main process by which exchange of solutes occurs between the blood and interstitial fluid at the capillary level is passive diffusion down concentration gradients.

Accepted Answer

A) True 
 B)False  True

Question 4

If the arterial blood pressure is recorded at 132/84, what is the mean arterial pressure?

Accepted Answer

A)  100 mm Hg 
B)  93 mm Hg 
C)  108 mm Hg 
D)  48 mm Hg 
E)  none of these 
A)  100 mm Hg 
B)  93 mm Hg 
C)  108 mm Hg 
D)  48 mm Hg 
E)  none of these

Question 5

Sympathetic stimulation of veins ____ venous pressure and drives ____ blood into the heart.

Accepted Answer

A)  increases; more 
B)  increases; less 
C)  decreases; more 
D)  decreases; less 
E)  none of these 
A)  increases; more 
B)  increases; less 
C)  decreases; more 
D)  decreases; less 
E)  none of these

Question 6

Organs that recondition the blood normally receive considerably more of the cardiac output than is necessary to meet their metabolic needs.

Accepted Answer

A) True 
 B)False

Question 7

Endothelin causes arteriolar smooth muscle contraction.

Accepted Answer

A) True 
 B)False

Question 8

Vasoconstriction

Accepted Answer

A)  refers to a decrease in the radius of a vessel 
B)  of an arteriole decreases blood flow through that vessel 
C)  of a vein increases blood flow through that vessel 
D)  refers to a decrease in the radius of a vessel, and vasoconstriction of an arteriole decreases blood flow through that vessel. 
E)  all of these 
A)  refers to a decrease in the radius of a vessel 
B)  of an arteriole decreases blood flow through that vessel 
C)  of a vein increases blood flow through that vessel 
D)  refers to a decrease in the radius of a vessel, and vasoconstriction of an arteriole decreases blood flow through that vessel. 
E)  all of these

Question 9

The mean arterial pressure is a simple average of the systolic and diastolic pressures.

Accepted Answer

A) True 
 B)False

Question 10

Use this figure to answer the corresponding questions.
Which vessels contain red blood cells?
  $\begin{array}{ll}
a.&\text {vessels 1,2 , and 3  }\
b.&\text {vessels 2,3 , and 4 }\
c.&\text {vessels 2,3 , and 5  }\
d.&\text {vessels $ 2,3,4 $ and5 }\
e.&\text { vessels } 1,2,3 \text {, and 5}\
\end{array}$

Accepted Answer

The answer of Use this figure to answer the corresponding...

Question 11

Local control mechanisms can override sympathetic control of changes in the size of arterioles.

Accepted Answer

A) True 
 B)False

Question 12

A decrease in blood osmotic pressure will decrease ultrafiltration and increase reabsorption at the capillary level.

Accepted Answer

A) True 
 B)False

Question 13

Complete each of the following statments.
A capillary wall has a measured thickness of about one ____________________.

Accepted Answer

The answer of Complete each of the following statments.
A capillary...

Question 14

Fluid movement into and out of the capillary is dependent on ____ and ____ pressures working in ____ direction(s).

Accepted Answer

A)  hydrostatic, osmotic, opposite 
B)  hydrostatic, osmotic, the same 
C)  filtration, absorption, the same 
D)  length, filling, the same 
E)  protein content, blood pressure, the same 
A)  hydrostatic, osmotic, opposite 
B)  hydrostatic, osmotic, the same 
C)  filtration, absorption, the same 
D)  length, filling, the same 
E)  protein content, blood pressure, the same

Question 15

Given the following parameters, what would the reabsorption pressure be? -$\quad$blood pressure at arteriolar end of capilary: $ 35 \mathrm{~mm} $ Hg 
-$\quad$blood pressure at venule end of capillary: $ 15 \mathrm{~mm} \mathrm{Hg} $ 
-$\quad$blood osmotic pressure: $ 22 \mathrm{~mm} \mathrm{Hg} $
-$\quad$interstitial fluid hyclrostatic pressure: $ 1 \mathrm{~mm} \mathrm{Hg} $ 
-$\quad$interstitial fluid osmotic pressure: $ 0 \mathrm{~mm} \mathrm{Hg} $

Accepted Answer

A)  6 mm Hg 
B)  7 mm Hg 
C)  8 mm Hg 
D)  10 mm Hg 
E)  22 mm Hg 
A)  6 mm Hg 
B)  7 mm Hg 
C)  8 mm Hg 
D)  10 mm Hg 
E)  22 mm Hg

Question 16

Which does not cause arteriolar vasodilation?

Accepted Answer

A)  decreased sympathetic stimulation 
B)  local decrease in O2 
C)  histamine 
D)  application of heat 
E)  myogenic response 
A)  decreased sympathetic stimulation 
B)  local decrease in O2 
C)  histamine 
D)  application of heat 
E)  myogenic response

Question 17

Complete each of the following statments.
The skeletal muscle pump changes venous return by ____________________ it.

Accepted Answer

The answer of Complete each of the following statments.
The skeletal...

Question 18

The myogenic response refers to vascular smooth muscle's tendency to

Accepted Answer

A)  constrict when blood flow increases 
B)  relax when blood flow increases 
C)  constrict when stretched 
D)  dilate when stretched 
E)  relax when blood flow increases and dilate when stretched 
A)  constrict when blood flow increases 
B)  relax when blood flow increases 
C)  constrict when stretched 
D)  dilate when stretched 
E)  relax when blood flow increases and dilate when stretched

Question 19

Because of their elasticity, arteries act as a(n) ____ for maintaining blood flow during diastole.

Accepted Answer

A)  cardiac reserve 
B)  venous reserve 
C)  arterial capacitance 
D)  lymphatic reserve 
E)  pressure reservoir 
A)  cardiac reserve 
B)  venous reserve 
C)  arterial capacitance 
D)  lymphatic reserve 
E)  pressure reservoir

Question 20

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

Accepted Answer

A) True 
 B)False

Exam 10: The Blood Vessels and Blood Pressure

The two determinants of mean arterial pressure are ____ and ____.

Complete each of the following statments. Normally capillary filtration exceeds reabsorption by about ____________________ liters daily.

The main process by which exchange of solutes occurs between the blood and interstitial fluid at the capillary level is passive diffusion down concentration gradients.

If the arterial blood pressure is recorded at 132/84, what is the mean arterial pressure?

Sympathetic stimulation of veins ____ venous pressure and drives ____ blood into the heart.

Organs that recondition the blood normally receive considerably more of the cardiac output than is necessary to meet their metabolic needs.

Endothelin causes arteriolar smooth muscle contraction.

Vasoconstriction

The mean arterial pressure is a simple average of the systolic and diastolic pressures.

Use this figure to answer the corresponding questions. Which vessels contain red blood cells? a. vessels 1,2 , and 3 b. vessels 2,3 , and 4 c. vessels 2,3 , and 5 d. vessels 2,3,4 and5 e. vessels 1,2,3 , and 5

Local control mechanisms can override sympathetic control of changes in the size of arterioles.

A decrease in blood osmotic pressure will decrease ultrafiltration and increase reabsorption at the capillary level.

Complete each of the following statments. A capillary wall has a measured thickness of about one ____________________.

Fluid movement into and out of the capillary is dependent on ____ and ____ pressures working in ____ direction(s).

Which does not cause arteriolar vasodilation?

Complete each of the following statments. The skeletal muscle pump changes venous return by ____________________ it.

The myogenic response refers to vascular smooth muscle's tendency to

Because of their elasticity, arteries act as a(n) ____ for maintaining blood flow during diastole.

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

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

The two determinants of mean arterial pressure are and .

Sympathetic stimulation of veins venous pressure and drives blood into the heart.

Fluid movement into and out of the capillary is dependent on and pressures working in direction(s).