630
How about the digestive system?
(feddit.org)
A place for majestic STEMLORD peacocking, as well as memes about the realities of working in a lab.

Rules
This is a science community. We use the Dawkins definition of meme.
There's valves before and after the stomach yeah. Are we donuts when those are open or jelly donuts when they're closed? When am I a cruller or cronut?