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Fig 13 Location of labelled motoneurons within the different subdivision of the facial nucleus following HRP injection in the nine (control and anasmotosed) animals. The enzyme was always injected in the left upper lid in controls (top), zygomatic nerve rotation (middle) and buccal-zygomatic (bottom) anastomosed animals. Labelled motoneurons located in five successive 50 µm sections are charted in the three diagrams. Each dot represents a labelled motoneuron. The calibration bar for the three photomicrographs is 200 µm. Facial nucleus subdivisions and their corresponding facial nerve branches were determined according to data reported elsewhere (Shaw and Baker, 1983). Abbreviations: D, I, L, M, VL, VM, dorsal, intermediate, lateral, medial, ventrolateral and ventromedial subdivisions of the facial nucleus; d, m, dorsal and medial.
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