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期细已有了分
,
4
细
组成,
胚细
(E细
)、
细
(F细
)、泡状细
(B细
)和吸收细
(R细
)。