Mucosal surface convolutions. Cellular aggregates observed on the enteric surface of various species.
D000717:Anatomy, Comparative; D000818:Animals; D005753:Gastric Mucosa / Q000166:cytology; D006168:Guinea Pigs; D000882:Haplorhini; D006801:Humans; D007413:Intestinal Mucosa / Q000166:cytology*; D051379:Mice; D008855:Microscopy, Electron, Scanning; D051381:Rats