yolk bag 中文意思是什麼

yolk bag 解釋
【生物學】卵黃囊。

  • yolk : n. 1. 蛋黃，卵黃。2. 羊毛油脂。3. 【生物學】（胚囊內的）胚乳；〈比喻〉真髓；核心。
  • bag : n 1 袋，囊；枕套。2 錢包；手提皮包；〈pl 〉 財富。3 獵囊；獵獲物。4 囊狀物；【棒球】壘囊；（母牛...
  1. After thymus transplantation, the embryo ' s thymus has trunk cell that comes from the embryo ' s yolk bag, embryo liver and marrow, it excretes a great deal of thymus hormone which change lymphocyte into mature t lymphocyte through multiplication and differentiation, then it help to turn b cell into serous cell, the quantity of the serous cell increases, the antibody that it produces also increases, that is the content of iga, igm and igg is increased

    而移制胎兒胸腺后，由於胎兒胸腺內有來自胎兒卵黃囊、胚肝和骨髓的幹細胞，並能分泌大量胸腺素，促進淋巴細胞在該處增殖、分化為成熟t淋巴細胞，繼而輔助b細胞活化成為漿細胞，漿細胞數量增加，產生的抗體量增加，即igg ， igm ， iga含量增加。
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