Appendix - histology slide

This is a histology slide of the appendix. At higher power the lining is a single layer of simple columnar epithelium with goblet cells. The glands are lined by similar cells, and there are crypts of Lieberkuhn. The lymphatic nodules contain germinal centers. There are an inner muscularis mucosae and outer circular muscularis made up of smooth muscle. The serosa is thin and fibrous.

Histology image descriptions and photography by Frank N. Miller, M.D.; histology image courtesy of Uniformed Services University of the Health Sciences.