The primary function of the human skeleton is to provide structural support, shape, and form to the body. It serves as a framework that supports the body's soft tissues and organs, allowing for movement by serving as an attachment point for muscles. In addition to providing support, the skeleton protects vital organs, such as the brain (cranium), heart, and lungs (rib cage). Another essential function is the production of blood cells within the bone marrow, as well as the storage of minerals like calcium and phosphorus. Overall, the skeleton plays a crucial role in maintaining overall health and functionality of the human body.