part of part_of anatomical structure 解剖结构 extraembryonic structure 胚外结构 A multicellular anatomical structure that is associated with an embryo and derived from the zygote from which it develops, but which does not contribute to the embryo proper or to structures that are part of the same organism after embryogenesis. AAO:0010020 AEO:0000042 BILA:0000042 CALOHA:TS-2119 CARO:0000042 EHDAA2:0003042 EHDAA:46 FBbt:00005835 FMA:85537 HAO:0000042 TAO:0000020 TGMA:0001843 UBERON:0000478 UMLS:C1282438 VHOG:0000292 XAO:0004005 ZFA:0000020 extra-embryonic structure extra-embryonic structure extraembryonic structures extraembryonic structures extraembryonic tissue extraembryonic tissue see also conceptus extraembryonic component in EHDAA2. uberon 一种与胚胎有关的多细胞解剖结构，来源于胚胎发育的合子，但不影响胚胎发育后的胚体或作为同一生物体一部分的结构。 参见EHDAA2中的概念胚外组分。 胚外组织(extraembryonic tissue) 胚外组织(extraembryonic tissue) 胚外结构(extra-embryonic structure) 胚外结构(extra-embryonic structure) 胚外结构(extraembryonic structures) 胚外结构(extraembryonic structures) developing anatomical structure 发育解剖结构 entire extraembryonic component 整个胚外组分