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Circulation

Science circulatory system

TermDefinition
cardiovascular system A system that consist of the heart, blood vessels, and blood
heart hollow, muscular organ that pumps blood throughout the body
ventricle lower chamber of heart pumps blood out of heart
valve a flap of tissue that prevents blood from flowing backwards
pacemaker sends out singnals that make the heart muscle contract
arteries blood vessels that carry away from heart
capillaries where substances are exchanged between blood and body cells
veins carry blood back to heart
aorta largest artery in the body
atrium upper chambers of heart
plasma liquid part of blood that carries nutrients, chemical messages and waste
red blood cells take oxygen in the lungs and deliever it to cells in the body
hemogolbin an iron-containing protein that binds chemically to oxygen molucus. Red blood cells are mostly made up of this
white blood cells disease fighters
platelet cell fragments that play an important role in blood clots
lymphatic system a network of vein-like vessels that return fluid to blood stream
lymph the fluid inside the lymphatic system
lymph node filter lymph by trapping disease causing bacteria in the fluid
coronary arteries a type of artery that carries blood to the heart
blood pressure the force by which ventricles contract
Created by: Evie1290
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