yolk sac造句

• The gonads form from a group of large granulated yolk sac cells which invacle the germinal ridges .
  性腺是由一群大的颗粒的卵黄囊细胞入缀生殖峭而形成。
• Effects of potassium dichromate on lipid fluidity of cell membrane of yolk sac in rats
  重铬酸钾对卵黄囊细胞膜脂质流动性的影响
• An endodermal sinus tumor ( yolk sac tumor ) of the testis is shown composed of primitive germ cells that form glomeruloid or embryonal - like structures
  睾丸的内胚层窦肿瘤（卵黄囊肿瘤）由原始生殖细胞构成，这些细胞形成血管球或胚芽样结构。