Protection - bone is rigid and tough so it protects delicate organs Support - provides a rigid frame the rest of the body can “hang off”. All soft tissues are supported by the skeleton allowing us to stand up Productions of blood cells - many bones have bone marrow inside of them. Bone marrow produces red blood cells (carry oxygen around the body) and white blood cells (fight infections) Movement - muscles are attached to bones, action of muscles allow skeleton to move, joints also allows the skeleton to move