| extraembryonic m. |
that located outside the embryo and belonging to fetal accessory organs, covering for example the amnion and yolk sac.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| extraembryonic m.’s |
the trophoblastic parts of the conceptus that provide for the support of the embryo or fetus by attachment, mechanical protection, endocrine action, and the mediation of chemical exchange with the maternal circulation. They include the yolk sac, allantois, amnion, umbilical cord, and chorion, including the placenta. Called also fetal m's.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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