Originally Posted by SpecterGT260
by leeching them from whatever tissues they are attached to
this does not constitute cross
talk. Instead it stands as evidence that embryos are somewhat hardy and do not need a very narrowly defined environment in which to grow. Also, to a fair extent, the embryo creates its own environment.
But this tissue they are attached is part of mothers body.... So every molecule passing from this tissue to embryo is essentially part of crosstalk. Do you really think that maternal hormones, nutrients, growth factors, oxygen etc. doesn't play any role in embryonic development? Because embryo or fetus is totally in need of maternal organs to support it growth, I would say that there is huge and complex cross talk going on. Or do you really think that pregnancy could occur with only small part of tissue without other parts of mother`s body?