Fig. 6. TSR-1 revealed by the application of Lucifer Yellow to the peripheral cut end of the dorsal nerve. Dendritic branches from the anterior pole of a fusiform receptor cell fan out on the extensor muscle, and a motor nerve (MN) runs antero-medially from the posterior pole. The inset shows the area around the motor nerve indicated by the arrow, demonstrating that fine branches extend out from the large MN. The MN was broken artificially. RC, receptor cell. Scale bar, 200 µm.