The primary purpose of the human skeletal system is to provide structural support and protection for the body. Comprising 206 bones in adults, the skeletal system serves as a framework that gives shape and stability to the body while facilitating movement in conjunction with muscles. It also protects vital organs, such as the brain, heart, and lungs, and plays a crucial role in producing blood cells through bone marrow. Additionally, the skeletal system stores essential minerals like calcium and phosphorus, contributing to overall health and function. Its complex structure is vital for both movement and maintaining homeostasis in the body.