Result:Four kinds of cells concluding ciliated cell,no secretory granule and no ciliated cell,no ciliated cell with secretory granule and platycyte were found in fetal middle ear epithelium mucosa .

• 结果:胎儿中耳粘膜上皮由纤毛细胞、无分泌颗粒无纤毛细胞、有分泌颗粒无纤毛细胞和扁平细胞组成。