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Figure 3 | Frontiers in Zoology

Figure 3

From: Internal receptors in insect appendages project directly into a special brain neuropile

Figure 3

Projections in relation to brain anatomy. A Anterior view of the brain of a 4th instar nymph after staining the maxillary palp nerve as seen in a double exposure using differential interference contrast and epifluorescent illumination. The principal neuropiles of the brain are outlined. The black arrow points out projections in deuto- and tritocerebrum, the white arrow points at ramifications within the superficial ventral inferior protocerebrum (SVIP). B The ramifications within the same preparation as seen in the confocal laser-scanning microscope and at higher magnification. C Reconstruction of the projections into the SVIP based on 6 consecutive 30 μm sagittal sections of a preparation similar to the one shown in A and B. Please note the extreme ventral position of the projections. Scales: 100 μm in A, C; 50 μm in B.

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