The sternum, or breastbone, is the flat bone where the ribs meet. Sometimes, the joints can pop or crack as a person stretches or moves. A muscle spasm, an injury, costochondritis, and surgery are ...

Look for the pubic symphysis, which is the joint located in the pelvis. The older the person at death, the more pitted and craggy these bones will be. Forensic anthropologists will compare this ...