yolk sac :

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yolk sac


  • n  membranous structure that functions as the circulatory system in mammalian embryos until the heart becomes functional
  • n  membranous structure enclosing the yolk of eggs in birds, reptiles, marsupials, and some fishes; circulates nutrients to the developing embryo
News & Articles

  • Tucson, AZ | Continuous News and Weather
    TUCSON - Ilaria Easom was 3 years old when she was diagnosed with Yolk Sac Germ Cell cancer. Ilaria underwent chemotherapy at University Medical Center, homeopathic treatment through her pediatrician, and major surgery at Tucson Medical Center.
    April 22, 2014 - KVOA Tucson

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