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【多选题】
下列( )属于甲状腺素的形成过程。A.
滤泡上皮细胞从血液中摄取所取氨基酸，经粗面内质网和体合成甲状腺球蛋白，排入滤泡腔中。
B.
上皮细胞同时摄入碘离子使之活化后亦排入滤泡腔中，在微绒毛上使甲状腺球蛋白碘化而储存。
C.
滤泡上皮细胞在腺垂体分泌的促甲状腺激素（TSH）的作用下，将腔内的碘化甲状腺球蛋白重新吸收入胞。
D.
上皮细胞内的溶酶体将其分解成甲状腺素（四碘甲腺原氨酸，T4，和少量三碘甲腺原氨酸，T3）。
E.
T4和T3经细胞基底部进入毛细血管随血液循环而发挥作用。
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