I’m having trouble finding a direct link to the original source (looks like it was available on Etsy, but links to his store seem to currently list 0 products), but here’s a high resolution version if you’d like to be able to read things better: https://www.visualcapitalist.com/wp-content/uploads/2018/11/human-anatomy-subway-map.html

The human body as a subway map

The male body as a subway map