Proctodeum
| Proctodeum | |
|---|---|
| Details | |
| Precursor | surface ectoderm |
| Gives rise to | lower anal canal |
| Latin | 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
- http://trc.ucdavis.edu/mjguinan/apc100/modules/Reproductive/bird/overview0/overview.html
- http://www.embryology.ch/francais/sdigestive/gesicht08.html
This article is issued from Wikipedia - version of the 2/20/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.