前端，又细又长的神经元伸展的细胞突出停止，然后拖动后边的球状细胞，然后再次伸展，如此反复。
In front, the long thin cellular protrusion of the neuron extends, pauses, then drags the bulbous cell body behind it, then extends again, and so on.
两条鞭毛稍不等长，着生于细胞前端，鞭毛长约为细胞直径的1。倍。
The length of the flagella is about 1.5 times as the cell diameter.
最近的工作证明当afadin位于运动细胞的前端时，参与控制细胞运动的方向(8,9)。
Recent work has also shown that afadin is involved in controlling the directionality of cell movement when it is localized at the leading edge of moving cells (8, 9).
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