<anatomy, obstetrics> A thin but tough extraembryonic membrane of reptiles, birds and mammals that lines the chorion and contains the foetus and the amniotic fluid around it, in mammals it is derived from trophoblast by folding or splitting.

(05 Feb 1998)

amniogenesis, amniogenic cells, amniography, amnioma < Prev | Next > amnionic, amnionitis, amnion nodosum

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