Skeletal Function :

supports soft tissues & protects internal organs such as brain, heart & lungs. structural basis for movement ie levers upon which the muscles act blood cell protection – bone marrows function of producing blood cells, especially during periods of growth mineral storage

Bone Composition :

Mineral Salts, Collagen & cement like ground substance. Mineral Salts such as Calcium Phosphate ( majority ), magnesium, Sodium & potassium. The protein Collagen gives tensile strength and when combined with cement like ground substance holds mineral salt crystals together