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הורד מילון זה
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
.
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