Question 1

These vessels take the blood back most directly to the heart.

Accepted Answer

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

Question 2

The tempo of the heartbeat is set by a cluster of specialized cardiac muscle cells called the ________.

Accepted Answer

The answer of The tempo of the heartbeat is set...

Question 3

If the connective tissue in the ventricles,called ________,give way,blood may go backwards through the AV valves:

Accepted Answer

The answer of If the connective tissue in the ventricles,called...

Question 4

The left side of the heart pumps blood through the ________,which transports blood to and from body tissues.

Accepted Answer

The answer of The left side of the heart pumps...

Question 5

Match each definition in the first column to the correct term in the second column.
-Vessels that carry blood back to the heart from the body.

Accepted Answer

A) Veins 
B) Thymus 
C) Tonsils 
D) Jugular veins 
E) Circulatory
F)Aorta
G)Capillaries
H)Exercise
I)Pulmonary veins
J)Spleen

Question 6

Which sequence is correct?

Accepted Answer

A) right ventricle > aorta > renal vein 
B) left ventricle > aorta > coronary artery 
C) left atrium > superior vena cava > renal artery 
D) right atrium > superior vena cava > coronary artery

Question 7

________ is the device that is used to measure blood pressure.

Accepted Answer

The answer of ________ is the device that is used...

Question 8

A heart ________ is an indication of disturbed blood flow due to a damaged heart valve.

Accepted Answer

The answer of A heart ________ is an indication of...

Question 9

Why do physicians often examine the lymph nodes of cancer patients?

Accepted Answer

The answer of Why do physicians often examine the lymph...

Question 10

Explain the mechanics of muscle contraction during a heartbeat.

Accepted Answer

The answer of Explain the mechanics of muscle contraction during...

Question 11

Which of the following causes blood to move through veins?

Accepted Answer

A) vasodilation 
B) contraction of smooth muscle 
C) contraction of skeletal muscle 
D) blood pressure

Question 12

The cells of the SA node are unable to maintain a stable resting membrane potential.They are particularly leaky to ions like sodium and potassium.What will this leakiness lead to?

Accepted Answer

A) the release of neurotransmitters, which will start a contraction 
B) the formation of the resting membrane potential 
C) the secretion of calcium from storage within the cell to the exterior of the cell 
D) the spontaneous formation of an action potential

Question 13

Because the sinoatrial node sends out impulses that initiate each heartbeat,it is often referred to as the ________ of the heart.

Accepted Answer

The answer of Because the sinoatrial node sends out impulses...

Question 14

An aneurysm is a weakening of the walls of a blood vessel.Which blood vessel would be most likely to break open if an aneurysm is present?

Accepted Answer

A) capillary 
B) arteriole 
C) artery 
D) venule

Question 15

Match each definition in the first column to the correct term in the second column.
-Structures that function to protect the throat against bacteria and foreign agents.

Accepted Answer

A) Veins 
B) Thymus 
C) Tonsils 
D) Jugular veins 
E) Circulatory
F)Aorta
G)Capillaries
H)Exercise
I)Pulmonary veins
J)Spleen

Question 16

Match each definition in the first column to the correct term in the second column.
-Site of lymphocyte production that functions to remove old red blood cells,foreign debris,and microorganisms from the blood.

Accepted Answer

A) Veins 
B) Thymus 
C) Tonsils 
D) Jugular veins 
E) Circulatory
F)Aorta
G)Capillaries
H)Exercise
I)Pulmonary veins
J)Spleen

Question 17

Which of the following are found in many veins that help direct blood flow in one direction only: toward the heart?

Accepted Answer

A) valves 
B) lymph nodes 
C) myocardium 
D) pericardium

Question 18

The lowest blood pressure that occurs when the ventricles are relaxing is known as ________.

Accepted Answer

A) diastolic pressure 
B) systolic pressure 
C) aneurysm 
D) arterial pressure

Question 19

A child is born with a hole in his heart between the left and right ventricles.This condition must be immediately corrected with surgery because the hole ________.

Accepted Answer

A) will cause the flow of blood to reverse in the heart 
B) will allow blood to leak out of the heart and the child could bleed to death 
C) will cause blood to flow in the reverse direction back into veins instead of the arteries 
D) allows mixing of both oxygenated and deoxygenated blood, which reduces oxygen delivery to tissues

Question 20

A patient has a heart attack and wakes up in the hospital.He gets a visit from his doctor who says he had to shock the patient's heart because part of it had gone into fibrillation.The doctor jokes that it could have been worse if the other part of the heart had been in fibrillation and that the patient was really lucky.Which chambers of the heart in the patient were in fibrillation,the atria or the ventricles?

Accepted Answer

The answer of A patient has a heart attack and...

Exam 12: The Cardiovascular and Lymphatic Systems

These vessels take the blood back most directly to the heart.

The tempo of the heartbeat is set by a cluster of specialized cardiac muscle cells called the ________.

If the connective tissue in the ventricles,called ________,give way,blood may go backwards through the AV valves:

The left side of the heart pumps blood through the ________,which transports blood to and from body tissues.

Match each definition in the first column to the correct term in the second column. -Vessels that carry blood back to the heart from the body.

Which sequence is correct?

________ is the device that is used to measure blood pressure.

A heart ________ is an indication of disturbed blood flow due to a damaged heart valve.

Why do physicians often examine the lymph nodes of cancer patients?

Explain the mechanics of muscle contraction during a heartbeat.

Which of the following causes blood to move through veins?

The cells of the SA node are unable to maintain a stable resting membrane potential.They are particularly leaky to ions like sodium and potassium.What will this leakiness lead to?

Because the sinoatrial node sends out impulses that initiate each heartbeat,it is often referred to as the ________ of the heart.

An aneurysm is a weakening of the walls of a blood vessel.Which blood vessel would be most likely to break open if an aneurysm is present?

Match each definition in the first column to the correct term in the second column. -Structures that function to protect the throat against bacteria and foreign agents.

Match each definition in the first column to the correct term in the second column. -Site of lymphocyte production that functions to remove old red blood cells,foreign debris,and microorganisms from the blood.

Which of the following are found in many veins that help direct blood flow in one direction only: toward the heart?

The lowest blood pressure that occurs when the ventricles are relaxing is known as ________.

A child is born with a hole in his heart between the left and right ventricles.This condition must be immediately corrected with surgery because the hole ________.