Besides the cavum was formed by fat granules.there were pigment granules,lysosome and rough endoplasmic reticulum et, furthermore the cytoskeleton was developed.

　
英 美
  • 細胞質(zhì)內有密布的核糖體及空腔，空腔是由脂肪顆粒形成，細胞質(zhì)中還有有色素顆粒、溶酶體和粗面內質(zhì)網(wǎng)等，細胞骨架發(fā)達。
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