origin is where the muscle is attached and is the starting point where the insertion is where the muscle ends the ending point the insertion of the muscle is what moves, w … hile the origin in most cases stays still.+ 23 others found this useful.Amor Palero.plit and merge into it. Answered by The Community. Making the world better, one answer at a time. The end of the muscle that is attached to the stationary bone is the point of origin. The muscle end that is attached to the moving bone is the point of insertion, and the action is what the muscle actually does.