Question 1

Which one of the following symptoms is most typical of hypertension?

Accepted Answer

A)  feeling dizzy and faint 
B)  rapid heart rate 
C)  very slow heart rate 
D)  loss of appetite 
E)  most often there are no symptoms 
A)  feeling dizzy and faint 
B)  rapid heart rate 
C)  very slow heart rate 
D)  loss of appetite 
E)  most often there are no symptoms

Question 2

Using the figure below, determine which side of the capillary is being described in each of the following statements.
   
A) arteriole side
B) venous side
-blood pressure is higher

Accepted Answer

The answer of Using the figure below, determine which side...

Question 3

Vasoconstriction causes an increase in the diameter of blood vessels, thus causing an increase in blood flow to the tissues.

Accepted Answer

A) True 
 B)False

Question 4

Each of the following statements accurately describes a feature of arteries EXCEPT which one?

Accepted Answer

A)  Arteries have an endothelial lining that reduces friction and promotes smooth blood flow. 
B)  Arteries have a smooth muscle layer on the outside, which provides some stiffness. 
C)  Elastin fibers in arterial walls allow stretching of the arteries. 
D)  Valves along major arteries maintain directed blood flow. 
E)  A tough supportive layer of connective tissue containing collagen is found on the outer surface of arteries. 
A)  Arteries have an endothelial lining that reduces friction and promotes smooth blood flow. 
B)  Arteries have a smooth muscle layer on the outside, which provides some stiffness. 
C)  Elastin fibers in arterial walls allow stretching of the arteries. 
D)  Valves along major arteries maintain directed blood flow. 
E)  A tough supportive layer of connective tissue containing collagen is found on the outer surface of arteries.

Question 5

Which one of the following statements is TRUE regarding arterioles and arteries?

Accepted Answer

A)  Arterioles and arteries transport blood from capillaries to veins. 
B)  Blood pressure in arterioles is greater than the blood pressure in arteries. 
C)  Arterioles are smaller and have less smooth muscle than arteries. 
D)  Arteries do not contain valves, whereas arterioles do. 
E)  Small sphincter muscles regulate the flow of blood from arteries into arterioles. 
A)  Arterioles and arteries transport blood from capillaries to veins. 
B)  Blood pressure in arterioles is greater than the blood pressure in arteries. 
C)  Arterioles are smaller and have less smooth muscle than arteries. 
D)  Arteries do not contain valves, whereas arterioles do. 
E)  Small sphincter muscles regulate the flow of blood from arteries into arterioles.

Question 6

A person's blood pressure has fallen below normal as the person has quickly jumped out of his or her chair where he or she had been relaxing. All of the following reflect events in restoring the blood pressure to normal EXCEPT which one?

Accepted Answer

A)  The heart rate will decrease. 
B)  The baroreceptors will detect the drop in blood pressure. 
C)  The medulla oblongata will send signals to the heart and to the blood vessels. 
D)  The force of contraction of the heart will increase. 
E)  Vasoconstriction of a number of arterioles will increase blood pressure. 
A)  The heart rate will decrease. 
B)  The baroreceptors will detect the drop in blood pressure. 
C)  The medulla oblongata will send signals to the heart and to the blood vessels. 
D)  The force of contraction of the heart will increase. 
E)  Vasoconstriction of a number of arterioles will increase blood pressure.

Question 7

Which one of the following is a symptom of a heart attack?

Accepted Answer

A)  increased cardiac output 
B)  intense chest pain 
C)  normal breathing 
D)  pain in the knees 
E)  pain in the right chest that radiates down the right arm 
A)  increased cardiac output 
B)  intense chest pain 
C)  normal breathing 
D)  pain in the knees 
E)  pain in the right chest that radiates down the right arm

Question 8

Blood pressure is highest in

Accepted Answer

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

Question 9

The amount of blood leaving the heart with every contraction is known as ________.

Accepted Answer

The answer of The amount of blood leaving the heart...

Question 10

The condition that results when an endothelium becomes damaged and blood leaks below the endothelium, causing the wall of the blood vessel to bulge, is a(n)________.

Accepted Answer

The answer of The condition that results when an endothelium...

Question 11

In the ________ circuit, blood leaving the ________ ultimately delivers oxygen and nutrients to all of the body's tissues and organs.

Accepted Answer

A)  pulmonary, lung capillaries 
B)  systemic, vena cava 
C)  pulmonary, torso and lower limbs 
D)  systemic, left ventricle 
A)  pulmonary, lung capillaries 
B)  systemic, vena cava 
C)  pulmonary, torso and lower limbs 
D)  systemic, left ventricle

Question 12

All of the following are features of capillaries that promote exchange between blood and interstitial fluid EXCEPT which one?

Accepted Answer

A)  Capillaries lack connective tissue in their walls. 
B)  Capillary walls consist of a single layer of squamous epithelial cells. 
C)  Capillary walls have pores within the cells and slits between the cells, making them "leaky." 
D)  Capillary walls lack smooth muscle. 
E)  Capillaries have tiny valves that keep the blood flowing in one direction. 
A)  Capillaries lack connective tissue in their walls. 
B)  Capillary walls consist of a single layer of squamous epithelial cells. 
C)  Capillary walls have pores within the cells and slits between the cells, making them "leaky." 
D)  Capillary walls lack smooth muscle. 
E)  Capillaries have tiny valves that keep the blood flowing in one direction.

Question 13

The endothelium of the heart and blood vessels is composed of a smooth layer of connective tissue that reduces friction, which helps keep blood flowing smoothly.

Accepted Answer

A) True 
 B)False

Question 14

When an athlete trains for a marathon, the goal is to increase cardiovascular output. What does that actually mean in terms of heart function?

Accepted Answer

Aerobic training, over a long enough per

Question 15

The aortic semilunar valve opens when the

Accepted Answer

A)  arterial pressure is lower than the ventricular pressure 
B)  right ventricle is in diastole 
C)  atrioventricular valves open 
D)  atrium is in systole 
E)  pulmonary semilunar valve closes 
A)  arterial pressure is lower than the ventricular pressure 
B)  right ventricle is in diastole 
C)  atrioventricular valves open 
D)  atrium is in systole 
E)  pulmonary semilunar valve closes

Question 16

Artificial hearts are used routinely today to replace damaged hearts when a donor heart is not available for transplant.

Accepted Answer

A) True 
 B)False

Question 17

Dexoygenated blood always flows

Accepted Answer

A)  into the left ventricle 
B)  toward the left atrium 
C)  toward the right atrium 
D)  in the systemic circuit 
E)  from capillaries to arterioles 
A)  into the left ventricle 
B)  toward the left atrium 
C)  toward the right atrium 
D)  in the systemic circuit 
E)  from capillaries to arterioles

Question 18

The sinoatrial node

Accepted Answer

A)  is located in the left atrium 
B)  sends out a signal for contraction once every two minutes 
C)  regulates the rate of heart contraction 
D)  is also known as the atrioventricular node 
E)  receives signals from the atrioventricular node 
A)  is located in the left atrium 
B)  sends out a signal for contraction once every two minutes 
C)  regulates the rate of heart contraction 
D)  is also known as the atrioventricular node 
E)  receives signals from the atrioventricular node

Question 19

The two upper chambers of the heart are called ________; the two lower chambers of the heart are called ________.

Accepted Answer

The answer of The two upper chambers of the heart...

Question 20

Oxygenated blood can be found in the following chambers of the heart: ________ and ________.

Accepted Answer

left atriu

Exam 8: Heart and Blood Vessels

Which one of the following symptoms is most typical of hypertension?

Using the figure below, determine which side of the capillary is being described in each of the following statements. A) arteriole side B) venous side -blood pressure is higher

Vasoconstriction causes an increase in the diameter of blood vessels, thus causing an increase in blood flow to the tissues.

Each of the following statements accurately describes a feature of arteries EXCEPT which one?

Which one of the following statements is TRUE regarding arterioles and arteries?

A person's blood pressure has fallen below normal as the person has quickly jumped out of his or her chair where he or she had been relaxing. All of the following reflect events in restoring the blood pressure to normal EXCEPT which one?

Which one of the following is a symptom of a heart attack?

Blood pressure is highest in

The amount of blood leaving the heart with every contraction is known as ________.

The condition that results when an endothelium becomes damaged and blood leaks below the endothelium, causing the wall of the blood vessel to bulge, is a(n)________.

In the ________ circuit, blood leaving the ________ ultimately delivers oxygen and nutrients to all of the body's tissues and organs.

All of the following are features of capillaries that promote exchange between blood and interstitial fluid EXCEPT which one?

The endothelium of the heart and blood vessels is composed of a smooth layer of connective tissue that reduces friction, which helps keep blood flowing smoothly.

When an athlete trains for a marathon, the goal is to increase cardiovascular output. What does that actually mean in terms of heart function?

The aortic semilunar valve opens when the

Artificial hearts are used routinely today to replace damaged hearts when a donor heart is not available for transplant.

Dexoygenated blood always flows

The sinoatrial node

The two upper chambers of the heart are called ________; the two lower chambers of the heart are called ________.

Oxygenated blood can be found in the following chambers of the heart: ________ and ________.

Human Biology, Science, and Society

The Chemistry of Living Things

Structure and Function of Cells

From Cells to Organ Systems

The Skeletal System

The Muscular System

Blood

The Immune System and Mechanisms of Defense

The Respiratory System: Exchange of Gases

The Nervous System: Integration and Control

Sensory Mechanisms

The Endocrine System

The Digestive System and Nutrition

The Urinary System

Reproductive Systems

Cell Reproduction and Differentiation

Cancer: Uncontrolled Cell Division and Differentiation

Genetics and Inheritance

DNA Technology and Genetic Engineering

Development and Aging

Evolution and the Origins of Life

Ecosystems and Populations

Human Impacts, Biodiversity, and Environmental Issues

Filters

In the circuit, blood leaving the ultimately delivers oxygen and nutrients to all of the body's tissues and organs.

The two upper chambers of the heart are called ; the two lower chambers of the heart are called .

Oxygenated blood can be found in the following chambers of the heart: and .