The midgut gland cell differentiation occurs at Z2, There are 4 types of cells, i. e., embryonic cell (E-cell), fibrillar cell (F-cell), blister cell (B-cell) and resorptive cell(R-cell).
中肠腺小管上皮在Z2期
胞已有了
,
4类
胞组成,
胚
胞(E
胞)、

胞(F
胞)、泡状
胞(B
胞)和吸收
胞(R
胞)。
类均
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