What is the difference between art anatomy and Bridgman's concept of the human machine? The human machine is the body as not only a fixed framework but also as a complex work of art which moves and was designed to move. In over 400 drawings, George B. Bridgman demonstrates the machine through the presentations which made him a gifted lecturer and teacher in his nearly fifty years at the Art Students League in New York and which gave life to drawings by his many students during those years. All skeletal and muscular systems are fully identified, and all are shown in front, back, and side views.