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yolk sac

/ˈjəʊk sæk/

1 entry

phrase

/ˈjəʊk sæk/C1formalmedical
  • ruПерепончатый мешок, прикреплённый к эмбриону, обеспечивающий раннее питание и играющий роль в раннем образовании клеток крови и развитии зародышевых клеток.

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.

    ruЭмбриональная структура

    • 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.