There are four types of bones that are flat including the skull (occipital-parietal nasal, frontal-frontal and vomer), as well as the thoracic (sternum) and ribs as well the pelvis (ilium (ischium) and pubis). The purpose of the flat bones is to protect internal organs, such as the brain, heart, and https://caidenxmyir.tkzblog.com/8469281/how-does-arthritis-affect-bones