The digestive system in the style of the London Underground ‘tube’ map

"You're trying to get to the liver? See, what you wanna do is take the red line past the stomach, then switch trains at the duodenum. Green line'll take you right there. Oh, you need to get to the appendix after that? Get back on the green line, back to the duodenum, switch to the red southbound, then get off at the caecum station. The purple express goes right to the appendix. Whatever you do, stay off the blue line. It winds up in a pretty bad neighborhood."
Slightly modified from the original quote by Jack Anderson
This post was written by Dr Christopher Clarke, Consultant Radiologist, Nottingham (UK) at the time of publishing.