Which system supports the body, protects internal organs, and allows movement?

This is call the "The Skeletal System" There is six functions of the skeletal system. However, existing literature commonly mentions only five. 1. Support, 2 Movement, 3. Protection 4. Blood Cell Production, 5. Storage of Minerals/Mineral Homeostasis. 6. Endocrine Regulation. These are the main function of this system.