The adult human body typically has 206 bones. This number includes bones in the skull, spine (vertebrae), ribs, arms, and legs
. At birth, humans have about 270 bones, but many of these fuse together during growth, resulting in the standard adult count of 206 bones
. The skeleton is divided into two main parts: the axial skeleton with 80 bones (including the skull, vertebral column, and rib cage) and the appendicular skeleton with 126 bones (including the limbs and girdles)
. The exact number can vary slightly between individuals due to anatomical variations such as extra ribs or sesamoid bones
