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yolk sac

/ˈjəʊk sæk/

翻译: 附着于胚胎的膜性囊,为早期胚胎提供营养,并参与早期血细胞生成和生殖细胞发育。

1 个条目

phrase

/ˈjəʊk sæk/C1formalmedical
  • zh附着于胚胎的膜性囊,为早期胚胎提供营养,并参与早期血细胞生成和生殖细胞发育。

A membranous sac attached to an embryo, providing early nutrition and playing a role in early blood cell formation and germ cell development.

  1. Embryonic structureC1formal

    A membranous sac attached to an embryo, providing early nutrition and playing a role in early blood cell formation.

    zh胚胎结构

    • The yolk sac is one of the first structures to form during pregnancy.
    • Doctors monitor the yolk sac during early ultrasound scans.
    • The yolk sac supplies nutrients to the developing embryo before the placenta forms.