Your tonsils are something like a center of your immune system intelligentsia in your mouth. A lot of different immune cells that we will get to know in this book work here to keep you healthy. To get samples to them, your tonsils have deep valleys where tiny pieces of food can get stuck. Microfold Cells, very curious cells that grab all sorts of stuff from your mouth and pull it deep into the tissue, where they show it to the rest of the immune cell to check out.
