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amnion |
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amnion
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The fetal allograft is exposed to the maternal immune system at the
placenta and fetal membranes (the amnion and chorion), collectively
described as the maternal-fetal interface. Although chemicals may transfer from mother
to fetus via the amniotic fluid after crossing the amnion, the majority
of agents gain access to the conceptus via placental passage (Nau and
Liddiard 1978). This may refer to the three fetal
membranes covering the fetus during its development
(the amnion, the chorion, the decidua) or to the fetal
membranes as one chamber, the uterus as the second,
and the abdominal cavity as the third. |
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