Flat bones are bones whose principal function is either extensive protection or the provision of broad surfaces for muscular attachment, the outer one is thick and tough; the inner is thin, dense, and brittle, and hence is termed the vitreous (glass-like) table. It helps the body by protect. Flat bones are bones whose principal function is either extensive protection or the provision of broad surfaces for muscular attachment. A sporting example is heading a football because the skull protects the brain from having impacts.
Long bone
Long bones are mostly located in the appendicular skeleton and include bones in the lower limbs (the tibia, fibula, and femur) and (the humours, radius, ulna). Long bones are hard, dense bones