The Amazing Function of Bones There are two hundred and six bones of various shapes, sizes and functions that make up our adult skeletal system. These amazing structures have many crucial roles in our body, including: 1: Storage of minerals such as collagen, calcium, magnesium, and mineral salts. 2: Production of red blood cells, platelets and most white blood cells. 3: Protection of vital organs such as the spinal cord, brain, heart and lungs. 4: Providing structure, allowin