Cardiovascular System

Question 1

Arteries

Answer 1

Vessels that carry blood away from the heart.

Question 2

Blood Vessels

Answer 2

channels that carry blood throughout your body.

Question 3

Capillaries

Answer 3

Tiny vessels that branch off from arteries to deliver blood to all body tissues.

Question 4

Deoxygenated

Answer 4

remove oxygen from

Question 5

Heart

Answer 5

A muscular pump that forces blood around the body.

Question 6

Oxygen

Answer 6

A chemical element with the atomic number 8

Question 7

Oxygenated

Answer 7

supplied, treated, or enriched with oxygen.

Question 8

Pulmonary circulation

Answer 8

transports deoxygenated blood to the lungs to get oxygen, and then back to the heart.

Question 9

Systemic circulation

Answer 9

carries oxygenated blood away from the heart to the tissues and cells, and then back to the heart.

Question 10

Veins

Answer 10

Vessels that bring blood back to the heart.

Question 11

Size of heart

Answer 11

size of a fist and shaped like an upside-down pear,

Question 12

How many chambers does the heart have?

Answer 12

4 chambers

Question 13

Location of heart

Answer 13

located in the mediastinum in the center of the chest cavity;

Question 14

Apex

Answer 14

the tip of left ventricle

Question 15

Endocardium

Answer 15

is the innermost layer of the heart and lines the chambers

Question 16

Myocardium

Answer 16

It is involuntary, striated muscle that constitutes the main tissue of the wall of the heart.

Question 17

Pericardium

Answer 17

It holds the heart in place and helps it work properly.

Question 18

Atria

Answer 18

are the receiving chambers of the heart.

Question 19

Ventricles

Answer 19

are the pumping chambers. They have a much thicker myocardium and their contraction ejects blood out of the heart and into the great arteries.

Question 20

Tricuspid Valve

Answer 20

it controls the opening between the right atrium and the right ventricle.

Question 21

Pulmonary valve

Answer 21

this valve prevents blood that has been ejected into the pulmonary artery from returning to the right ventricle as it relaxes.

Question 22

Mitral Valve

Answer 22

Blood flows through this atrioventricular valve to the left ventricle and cannot go back up into the left atrium.

Question 23

Aortic Valve

Answer 23

Blood leaves the left ventricle through this valve and cannot return to the left ventricle.