The sensory may be differentiated into ciliated receptor cells with 4-8 shortly tubular cilia arised from the top of each cell and microvilus arised from the c ellular tops.

• 感觉细胞可分成有4-8根短管状纤毛的纤毛感觉细胞和有微绒毛样突起的微绒毛感觉细胞；