Biology:Blastoderm
From HandWiki
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]
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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.[1]
In oviparous
In chicken eggs, the blastoderm represents a flat disc after embryonic fertilization.[3] At the edge of the blastoderm is the site of active migration by most cells.[4]
See also
References
- ↑ 1.0 1.1 Gilbert, Scott F. (2000) (in en). Early Drosophila Development (6 ed.). Sunderland (MA): Sinauer Associates. https://www.ncbi.nlm.nih.gov/books/NBK10081/. Retrieved 20 April 2018.
- ↑ "blastoderm". https://medical-dictionary.thefreedictionary.com/blastoderm.
- ↑ "Tutorial on chick early development" (in en). University College London. https://www.ucl.ac.uk/biosciences/departments/cdb/people/claudio-stern/stern_lab/tutorial.
- ↑ 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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