# Yolk plug

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'''Yolk plug''' is the remaining patch of [endodermal](/source/endodermal) cells that is created during the formation of the [dorsal lip](/source/dorsal_lip) of the [blastopore](/source/blastopore) in the [amphibian](/source/amphibian). It is a patch of large endodermal cells which remains exposed on the vegetal surface of the blastula that will eventually be internalized by [epiboly](/source/epiboly).

==References==
*{{cite book|author=Frank J. Dye|title=Dictionary of Developmental Biology and Embryology|url=https://books.google.com/books?id=Z4ZHxrcFGkkC&pg=PA228|date=21 February 2012|publisher=John Wiley & Sons|isbn=978-0-470-90595-1|pages=228}}

{{DEFAULTSORT:Yolk Plug}}
Category:Amphibians
Category:Vertebrate developmental biology

{{amphibian-stub}}

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Adapted from the Wikipedia article [Yolk plug](https://en.wikipedia.org/wiki/Yolk_plug) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Yolk_plug?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.