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blastocyst

Discussion in 'DAT Discussions' started by arpitpatel86, Jun 5, 2008.

  1. arpitpatel86

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    does the zygote for in the inner cells of the blastocyst?
     
  2. pistolpete007

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    good question.....i know that embryo is in the inner cells....is that then same thing as a zygote? stupid question i know...can some1 help me on that
     
  3. gkhan

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    zygote : sperm+egg

    then it divides
    morula -> goes to uterine wall -> becomes a blastula-> becomes a gastula
    *basically these are just names for the zygote @ different stages.

    first division in 32 hours, 2nd in 60 hours (4cells), 3rd in 72 hours (8)
    by the 4th day it enters uterine wall. and you get 3 germ layers, meso/endo/ecto.

    bastocyst has 3 types of cells, that impregnate the endometrium and thats where you get vasculation of the embryo from.

    i just reviewed this a few days ago while studying, someone correct me if i'm wrong.
     
  4. Mstoothlady2012

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    I think blastocyst is the last stage before the zygote actually becomes an embryo.
     

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