Question 1

Arteries in the brain unite to form the ____________________,which helps ensure that the brain receives an adequate supply of blood.

Accepted Answer

The answer of Arteries in the brain unite to form...

Question 2

Arterial walls are ____________________ than venous walls because they are subjected to greater ____________________.

Accepted Answer

The answer of Arterial walls are ____________________ than venous walls...

Question 3

The most common site for routine assessment of heart rate is the

Accepted Answer

A)  radial artery. 
B)  brachial artery. 
C)  carotid artery. 
D)  axillary artery. 
A)  radial artery. 
B)  brachial artery. 
C)  carotid artery. 
D)  axillary artery.

Question 4

Which three factors determine blood pressure?

Accepted Answer

A)  Vessel diameter,blood viscosity,cardiac output 
B)  Resistance,blood volume,cardiac output 
C)  Heart rate,stroke volume,blood volume 
D)  Vessel diameter,cardiac output,heart rate 
A)  Vessel diameter,blood viscosity,cardiac output 
B)  Resistance,blood volume,cardiac output 
C)  Heart rate,stroke volume,blood volume 
D)  Vessel diameter,cardiac output,heart rate

Question 5

Which blood vessels connect the two sides of the vascular system?

Accepted Answer

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

Question 6

What causes the friction in blood vessels that affects blood pressure?

Accepted Answer

A)  Cardiac output and heart rate 
B)  Blood viscosity and blood vessel diameter 
C)  Damaged,broken capillaries and varicose veins 
D)  Pressure gradients and blood flow 
A)  Cardiac output and heart rate 
B)  Blood viscosity and blood vessel diameter 
C)  Damaged,broken capillaries and varicose veins 
D)  Pressure gradients and blood flow

Question 7

Which statement best explains why a person with a systolic blood pressure of 130 mm Hg might have a blood pressure of only 70 mm Hg in the arterioles.

Accepted Answer

A)  The person has abnormally high arteriole blood pressure. 
B)  Blood is less viscous in the arterioles,and therefore requires less pressure to flow. 
C)  The narrower diameter of the arterioles causes the drop in pressure. 
D)  Pressure declines as the blood moves away from the heart. 
A)  The person has abnormally high arteriole blood pressure. 
B)  Blood is less viscous in the arterioles,and therefore requires less pressure to flow. 
C)  The narrower diameter of the arterioles causes the drop in pressure. 
D)  Pressure declines as the blood moves away from the heart.

Question 8

The two major pathways of circulation are the ____________________ system and ____________________ system.

Accepted Answer

The answer of The two major pathways of circulation are...

Question 9

The maximum pressure generated during ventricular contraction is called

Accepted Answer

A)  diastolic pressure. 
B)  systolic pressure. 
C)  stroke volume pressure. 
D)  arteriole pressure. 
A)  diastolic pressure. 
B)  systolic pressure. 
C)  stroke volume pressure. 
D)  arteriole pressure.

Question 10

How does vasodilation decrease blood pressure?

Accepted Answer

A)  It increases cardiac output,which means less pressure is required to maintain blood flow to tissues. 
B)  It increases venous return,which decreases the amount of pressure needed to return blood to the heart. 
C)  It decreases resistance,which means less pressure is required to overcome the resistance. 
D)  It slows blood velocity; less velocity requires less pressure. 
A)  It increases cardiac output,which means less pressure is required to maintain blood flow to tissues. 
B)  It increases venous return,which decreases the amount of pressure needed to return blood to the heart. 
C)  It decreases resistance,which means less pressure is required to overcome the resistance. 
D)  It slows blood velocity; less velocity requires less pressure.

Question 11

What is peripheral resistance?

Accepted Answer

A)  Any property of the peripheral vascular system or blood that increases friction. 
B)  Forces outside the vascular system that interfere with circulation,such as edema,excess weight,constrictive clothing,or conditions that impair leg mobility. 
C)  Areas of the peripheral vascular system damaged because of age-related conditions such as stiffening of the arteries or plaque buildup that causes friction and hinders the blood flow. 
D)  Peripheral vasoconstriction caused by abnormal release of hormones such as angiotensin I and II,epinephrine,rennin,aldosterone,and others. 
A)  Any property of the peripheral vascular system or blood that increases friction. 
B)  Forces outside the vascular system that interfere with circulation,such as edema,excess weight,constrictive clothing,or conditions that impair leg mobility. 
C)  Areas of the peripheral vascular system damaged because of age-related conditions such as stiffening of the arteries or plaque buildup that causes friction and hinders the blood flow. 
D)  Peripheral vasoconstriction caused by abnormal release of hormones such as angiotensin I and II,epinephrine,rennin,aldosterone,and others.

Question 12

What is the probable cause of ankle edema in a person with right-sided heart failure?

Accepted Answer

A)  Reduced capillary reabsorption 
B)  Obstructed lymphatic drainage 
C)  Increased capillary filtration 
D)  Increased colloid osmotic pressure 
A)  Reduced capillary reabsorption 
B)  Obstructed lymphatic drainage 
C)  Increased capillary filtration 
D)  Increased colloid osmotic pressure

Question 13

The greater the blood's ____________________,the more it resists free flow.

Accepted Answer

viscosity

Question 14

Which is the most significant factor affecting peripheral resistance?

Accepted Answer

A)  Blood viscosity 
B)  Blood vessel length 
C)  Blood vessel diameter 
D)  Blood pH 
A)  Blood viscosity 
B)  Blood vessel length 
C)  Blood vessel diameter 
D)  Blood pH

Question 15

What is a portal system of circulation?

Accepted Answer

A)  Circulation of blood through arteries to capillaries to veins and then to the heart 
B)  An area of the venous system where blood slows to allow for nutrient absorption 
C)  Circulation of blood through two capillary beds before returning to the heart 
D)  Blood flow to and from the liver 
A)  Circulation of blood through arteries to capillaries to veins and then to the heart 
B)  An area of the venous system where blood slows to allow for nutrient absorption 
C)  Circulation of blood through two capillary beds before returning to the heart 
D)  Blood flow to and from the liver

Question 16

Why is it important for the tunica intima to be smooth?

Accepted Answer

A)  To make stretching easier 
B)  To increase recoil power 
C)  To help prevent aneurysms 
D)  To help prevent blood clots 
A)  To make stretching easier 
B)  To increase recoil power 
C)  To help prevent aneurysms 
D)  To help prevent blood clots

Question 17

Although cardiac contractions supply some of the power propelling blood through the vascular system,what other property of the circulatory system keeps blood circulating?

Accepted Answer

A)  Arterial expansion and recoil 
B)  Pressure gradients 
C)  Valves in medium-sized veins 
D)  Skeletal muscle and respiratory pumps 
A)  Arterial expansion and recoil 
B)  Pressure gradients 
C)  Valves in medium-sized veins 
D)  Skeletal muscle and respiratory pumps

Question 18

A patient who cannot walk because of severe arthritis develops edema in both ankles.Based on your understanding of edema,capillary pressure,and mechanisms of capillary exchange,which action would help decrease the patient's edema?

Accepted Answer

A)  Restrict fluid intake. 
B)  Elevate the patient's legs. 
C)  Provide a high-protein diet. 
D)  Increase fluid intake. 
A)  Restrict fluid intake. 
B)  Elevate the patient's legs. 
C)  Provide a high-protein diet. 
D)  Increase fluid intake.

Question 19

What effect does reducing peripheral resistance have?

Accepted Answer

A)  It decreases blood flow and increases blood pressure. 
B)  It increases cardiac output. 
C)  It increases blood flow and decreases blood pressure. 
D)  It decreases cardiac output and increases blood pressure. 
A)  It decreases blood flow and increases blood pressure. 
B)  It increases cardiac output. 
C)  It increases blood flow and decreases blood pressure. 
D)  It decreases cardiac output and increases blood pressure.

Question 20

Which area of the aorta supplies blood to the liver?

Accepted Answer

A)  Descending aorta 
B)  Abdominal aorta 
C)  Aortic arch 
D)  Thoracic aorta 
A)  Descending aorta 
B)  Abdominal aorta 
C)  Aortic arch 
D)  Thoracic aorta

Exam 15: Vascular System

Arteries in the brain unite to form the ____________________,which helps ensure that the brain receives an adequate supply of blood.

Arterial walls are ____________________ than venous walls because they are subjected to greater ____________________.

The most common site for routine assessment of heart rate is the

Which three factors determine blood pressure?

Which blood vessels connect the two sides of the vascular system?

What causes the friction in blood vessels that affects blood pressure?

Which statement best explains why a person with a systolic blood pressure of 130 mm Hg might have a blood pressure of only 70 mm Hg in the arterioles.

The two major pathways of circulation are the ____________________ system and ____________________ system.

The maximum pressure generated during ventricular contraction is called

How does vasodilation decrease blood pressure?

What is peripheral resistance?

What is the probable cause of ankle edema in a person with right-sided heart failure?

The greater the blood's ____________________,the more it resists free flow.

Which is the most significant factor affecting peripheral resistance?

What is a portal system of circulation?

Why is it important for the tunica intima to be smooth?

Although cardiac contractions supply some of the power propelling blood through the vascular system,what other property of the circulatory system keeps blood circulating?

A patient who cannot walk because of severe arthritis develops edema in both ankles.Based on your understanding of edema,capillary pressure,and mechanisms of capillary exchange,which action would help decrease the patient's edema?

What effect does reducing peripheral resistance have?

Which area of the aorta supplies blood to the liver?

Orientation to the Human Body

Chemistry of Life

Cells

Tissues

Integumentary System

Bones Bone Tissue

Skeletal System

Joints

Muscular System

Nervous System

Sense Organs

Endocrine System

Blood

Heart

Lymphatic Immune Systems

Respiratory System

Urinary System

Fluid,electrolyte Acid-Base Balance

Digestive System

Nutrition Metabolism

Human Microbiome

Reproductive Systems

Pregnancy Human Development

Heredity

Filters

Arterial walls are than venous walls because they are subjected to greater .

The two major pathways of circulation are the system and system.