Here's a cool little application that lets you draw things that squiggle and crawl. If your small intestine had a traffic helicopter that reported on the flow of parasites and hittites to and from their work place, I think it would look something like this. It even has an x-ray mode.   Don't be afraid, though.  Remember parasites are our pals!

The whole thing reminds me of a medical test I had once.  They took this camera and . . . . never mind.