My function is the Skeletal System. Some major functions are structure, movement, protection, blood cell production, and also storage. Without the skelatal system, we would be flopping everywhere becaus there was no support. Also, none of our organs, of anything like that would be moving every where because the bones act just like walls to everything inside. Storage to the bones is holding all of the things inside us together, and steady. Without the storage and support, all of the things inside of us would be moving around and floating everywhere. That would for sure not be good!!!