5 parts of the circulatory system Blood Arteries Veins Capillaries heart
Function of the circulatory system Carry materials such as oxygen and dissolved nutrients to all cells and carry waste such as carbon dioxide away from all cells
Arteries Carries blood away from the heart They are thicker and stretch more than veins because they are under more pressure from the blood
veins Carry blood to the heart and have less pressure
Capillaries Connect arteries and veins They are one cell thick and this is where nutrients and gasses such as oxygen and carbon dioxide enter and leave cells
4 parts of blood Red Blood cells White blood cells plasma platelets
Red blood cells Carry gases such as oxygen
White blood cells Fight infections
Platelets Clot Blood
plasma Liquid part of blood Carries dissolved nutrients
Function of heart valves To keep blood flowing in one direction and to stop the blood from going backwards
Chambers of the heart Atrium- top Ventricles- bottom
Blood types A B AB- can receive any blood O-can give to any blood type