I recall first seeing this image in a science museum - the Boston Museum of Science if I recall, in their wonderful Model Section. The image is Fritz Kahn's mechanical model of digestion. The National Institutes of Health (NIH) has a special exhibit celebrating the different views and perspectives of the body in an exhibit called Dream Anatomy. This design belongs to the history of automata, and adds some new twists in its detailed anatomical representation. Fritz Kahn, the designer, produced a variety of creative infographics for the relationship of man to machine-- "Maschine Mensch"