Cardiovascular System

Front 1

Aorta

Back 1

largest artery that emerges from the left ventricule

Front 2

Aortic Valve

Back 2

the left semilunar valve

Front 3

arteriole

Back 3

blood vessels that is transitional between arteries and capillaries

Front 4

artery

Back 4

blood vessels that carries blood away from the heart

Front 5

atrium

Back 5

the two superior chambers of the heart that receive incoming blood from the veins

Front 6

atrioventricular valve

Back 6

two heart valves, right and left, that channels blood flow in one direction from an atrium to a ventricule

Front 7

left atrioventricular valve

Back 7

channels blood from in one direction from left atrium to left ventricule

Front 8

right atrioventricular valve

Back 8

channels blood from in one direction from right atrium to right ventricule

Front 9

sinoatrial node

Back 9

cluster of modified heart cells in the right atrial wall that originates each cardiac cycle

Front 10

cardiac cells

Back 10

cells of the hearts myocardium

Front 11

endocardium

Back 11

thin layer of epithelial tissue that lines the heart chambers

Front 12

epicardium

Back 12

membrane that forms the outer later of the heart wall, known as the visceral pericardium

Front 13

myocardium

Back 13

the bulk of the heart wall; it is composed of the cardiac muscle tissue and is the functional part of the heart

Front 14

pericardial cavatiy

Back 14

space enclosed by the pericardial sac that contains heart fluid

Front 15

pericardial sac

Back 15

outer membrane that surrounds the heart

Front 16

diastole

Back 16

dilation of the heart chambers during which their walls relax and the chambers fill with blod

Front 17

systemic circulation

Back 17

circulatory route that begins from left ventricule at the aorta, extends throughout the body except the lungs and returns to the right atrium

Front 18

pulmonary circulation

Back 18

circulatory route associated with the lungs in which the blood releases it CO2 load and becomes oxygenated

Front 19

pulmonary valve

Back 19

the right semilunar valve

Front 20

pulmonary trunk

Back 20

major artery that arises from the right ventricle

Front 21

systole

Back 21

contraction of the heart that results in expulsion of blood from the hearts chambers

Front 22

endothelium

Back 22

lining of the heart chambers and blood vessels; composed of flattened epithelium cells and a thin layer of connective tissue

Front 23

vasoconstriction

Back 23

narrowing of a blood vessel that is produced when the vessels wall contracts

Front 24

vasodilation

Back 24

dilation of a blood vessel that is produced when vessel wall relaxes

Front 25

cardiovascular system

Back 25

body system comprised of the heart and blood vessels

Front 26

venule

Back 26

small, transitional blood vessels between capillary and vein

Front 27

ventricule

Back 27

two lower heart chambers that contract to push blood through the arteries

Front 28

angina pectoris

Back 28

chest pain usually caused by an insufficient supply of blood to the heart

Front 29

angiospasm

Back 29

abnormal contractions (spasms) of a blood vessel wall

Front 30

angiostenosis

Back 30

narrowing of a blood vessel

Front 31

arrhythmia

Back 31

any loss of rhythm in the heartbeat

Front 32

bradycardia

Back 32

an abnormally slow hear rate, usually under 50 beats per minute

Front 33

carodynia

Back 33

a sensation of pain in the heart

Front 34

cardiogenic

Back 34

a condition that originates in the heart

Front 35

cardiomegaly

Back 35

abnormal hypertrophy (enlargment) of the heart

Front 36

cyanosis

Back 36

blue coloration of the skin and mucous membrans; caused by oxygen deficiency

Front 37

dysrhythmia

Back 37

a disturbance or abnormality of the hearts normal rhythmic cycle

Front 38

palpitation

Back 38

an experience of pounding, racing, or skipping of the heartbeat

Front 39

tachycardia

Back 39

a fast heartbeat