Flat bones can be found in the skull (occipital and frontal, frontal and nasal, lacrimal and vomer), the chest (sternum, ribs and sternum) and the pelvis(ilium pubis, ischium, and ilium). Flat bones serve to protect internal organs like the heart, brain, pelvic, and pelvic. The flat bones are somewhat smooth http://symptoms04703.myparisblog.com/9499143/how-are-bones-related-to-the-issue-of-arthritis