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Invaginations

Invagination

1. (Science: biology) The condition of an invaginated organ or part.

2. (Science: biology) One of the methods by which the various germinal layers of the ovum are differentiated.

in embolic invagination, one half of the blastosphere is pushed in towards the other half, producing an embryonic form known as a gastrula. In epibolic invagination, a phenomenon in the development of some invertebrate ova, the epiblast appears to grow over or around the hypoblast.

Origin: L. Pref. In- _ vagina sheath.


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Bacterial Cell

Hi there, I got this from "MICROBIOLOGY 5/e" by Prescott, Harley and Klein "Mesosomes are structures formed by invaginations of the plasma membrane that may play a role in cell wall formation during cell division and in chromosome replication and distribution; however, mesosomes ...

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by Mjhavok
Tue Oct 04, 2005 9:21 am
 
Forum: Microbiology
Topic: Bacterial Cell
Replies: 7
Views: 4851

Re: Endoskeleton bug???

... most of the advanced goups it`s centralised in the torax in form of ganglion with nervs that goes from it. Althoug insect have exoscelet thay have invaginations of it wich serves as anchoring points for muscels. What if evolution turn in the direction of enlarging that invaginations? The biggest ...

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by Beetle
Fri Jun 24, 2005 12:04 am
 
Forum: Evolution
Topic: Q: why are insects so succesfull?
Replies: 22
Views: 7550


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