- Source: Proctodeum
A proctodeum is the back ectodermal part of an alimentary canal. It is created during embryogenesis by a folding of the outer body wall. It will form the lower part of the anal canal, below the pectinate line, which will be lined by stratified squamous non-keratinized (zona hemorrhagica) and stratified squamous keratinized (zona cutanea) epithelium. The junction between them is Hilton's white line.
External links
"Poumons". www.embryology.ch (in French). Archived from the original on 2019-09-27. Retrieved 2007-11-07.
