胸腺小体增大并增加。
大约E20至E21髓质中出现典型的胸腺小体，皮质主要被中、小淋巴细胞填充。
The cortex mainly is filled by the medium and small lymphocytes, the typical Hassalls Corpuscles in the medulla appear about E20 to E21.
在各发育期中华鳖胸腺皮质、髓质交界处和髓质区有明显的囊状胸腺小体和交错突细胞。
During development period, there were cystoid thymic corpuscles and interdigitating cells in thymic medulla and cortico-medullary border.
试验组胸腺小叶增多，皮质增厚，淋巴细胞密集，髓质比例减小，胸腺小体减少、减小；
The thymic lobule of experiment group increased, the thymic cortex incrassated and the lymphocyte became coarctate, the portion of thymic medulla decreased and thymic corpuscle enlarged and increased.
试验组胸腺小叶增多，皮质增厚，淋巴细胞密集，髓质比例减小，胸腺小体减少、减小；
The thymic lobule of experiment group increased, the thymic cortex incrassated and the lymphocyte became coarctate, the portion of thymic medulla decreased and thymic corpuscle enlarged and increased.
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