Here’s something that bugged me when I was learning about the histology of the GI tract. It seems like the stomach and the small intestine have kind of the same thing going on. I mean, if you look at the histology images and the drawings, they both have glands at the bottom and other structures (covered with plain columnar epithelium) above. In the stomach, the things on the top are pits, and in the small intestine, the things on the top are villi. It seemed hard to visualize exactly how they looked different.
I decided to make a short video explaining the difference. I think it’s easier to understand if you can see someone drawing on the pictures. So here it is – I hope if some of you had the same problem that this will solve it!