The common name for the human skeletal structure is the skeleton. The skeleton serves as the framework of the body, providing support, shape, and protection to vital organs. It consists of 206 bones in adults, which are classified into two main categories: the axial skeleton (comprising the skull, vertebral column, and ribcage) and the appendicular skeleton (including the limbs and pelvic girdle). In addition to providing structural support, the skeleton plays essential roles in movement, blood cell production, and mineral storage. The bones are connected by joints and are supported by ligaments and tendons to facilitate mobility.