Human movement relies on neuromuscular activation, muscle contraction, and bone movement.

“so number one you have to have some sort of direction or signal and this is going to be coming from your nervous system and so whether this is Central peripheral whether this is autonomic whether this is a controlled sematic action response it doesn't really matter for this conversation the nerve has to tell it what to do so nerves you get that one that's it don't take anything else nervous system right you get that control now that nerve then has to go into a muscle fiber and tell the muscle fiber to contract okay the muscle fiber then is part two so the cell actually has to contract itself but that actually doesn't cause movement muscles are not attached to Bone that's not how it works so muscle fibers are are surrounded by connected tissue all those connected tissue are bundled together in like a package so if you imagine buying a bunch of strips of bacon from The Butcher and they would wrap that up and kind of Saran Wrap together that's actually kind of what a muscle looks like so you got that saran wrap connecting it so if you pulled on one piece of bacon youd notice the whole package moves and that's that's sort of the point you're transferring force from muscle through connective tissue that connective tissue comes together um into a tendon that tendon then attaches to Bone and so the third part for human movement is actually connected tissue and so you have to have a signal you have to have a muscle contract that has to make connect the tissue pull on a bone that actually is what generates human movement”