Proctodeum
From Infogalactic: the planetary knowledge core
| Proctodeum | |
|---|---|
| Details | |
| Precursor | surface ectoderm |
| Gives rise to | lower anal canal |
| Identifiers | |
| TA | Lua error in Module:Wikidata at line 744: attempt to index field 'wikibase' (a nil value). |
| TH | {{#property:P1694}} |
| TE | {{#property:P1693}} |
| FMA | {{#property:P1402}} |
| Anatomical terminology
[[[d:Lua error in Module:Wikidata at line 863: attempt to index field 'wikibase' (a nil value).|edit on Wikidata]]]
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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
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