This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Gray. The interior of the anal cami and lower part of the rectum showing the columns of Morgagni and the anal valves between their lower ends The columns were more numerous in the specimen than usual Cunningham Other fields Information field Ucfirst Plate before Henry Gray Anatomy of the Human Body See Book section below Creator