Blastoderm

A blastoderm (germinal disc, blastodisc) is a single layer of embryonic epithelial tissue that makes up the blastula.[1] It encloses the fluid filled blastocoel. Gastrulation follows blastoderm formation, where the tips of the blastoderm begins the formation of the ectoderm, mesoderm, and endoderm.[2]

Formation

The blastoderm is formed when the oocyte plasma membrane begins cleaving by invagination, creating multiple cells that arrange themselves into an outer sleeve to the blastocoel.[3]

In oviparous

In chicken eggs, the blastoderm represents a flat disc after embryonic fertilization.[4] At the edge of the blastoderm is the site of active migration by most cells.[5]

gollark: So somehow try and stop people pattern-matching it to "generic meme channel"?
gollark: And/or was limited to relevant-to-the-rest-of-the-server memes somehow.
gollark: Perhaps it would be less bad if it was focused on "meme science" or something like you said.
gollark: Yes, to "terrible memes" or something, which is hardly likely to make it better.
gollark: Rebrand the channel, I mean.

See also

References
  1. Gilbert, Scott F. (2000). Early Drosophila Development (6 ed.). Sunderland (MA): Sinauer Associates. Retrieved 20 April 2018.
  2. "blastoderm". The Free Dictionary. Retrieved 20 April 2018.
  3. Gilbert, Scott F. (2000). Early Drosophila Development (6 ed.). Sunderland (MA): Sinauer Associates. Retrieved 20 April 2018.
  4. "Tutorial on chick early development". www.ucl.ac.uk. University College London.
  5. Bellairs, Ruth; Osmond, Mark. Atlas of Chick Development (3 ed.). Atlas Press. p. 15–28.
  • Campbell Reece, Biology 7th edition, Pearson Publishing, 2005
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