目的：探讨人胎舌内NOS阳性神经元的发育规律。

Objective: to explore the rule of development of NOS positive neurons in tongue of human fetus.

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实验用尼氏染色法对11例胎儿22条舌神经内的神经细胞进行观察。

Nissl's staining method was used to observe neurons in 22 lingual nerves of 11 fetuses.

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我们发现切牙的舌侧的颈环结构内也包括少量的星网状层细胞，推测其可能发挥干细胞龛的作用。

We show that the lingual cervical loop contains a small core of stellate reticulum cells and suggest that it acts as a functional stem cell niche.

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