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Figure 2 | BMC Neuroscience

Figure 2

From: Comparative analysis of deutocerebral neuropils in Chilopoda (Myriapoda): implications for the evolution of the arthropod olfactory system and support for the Mandibulata concept

Figure 2

Lithobiomorpha. A Lithobius forficatus. B Histological horizontal section of the head showing the deutocerebral lobes with olfactory glomeruli and corpus lamellosum (dashed line) as well as the ommatidia. C Voltexrendering (Amira) of a neurobiotin backfill showing deutocerebral neuropils and neurite projections. D Horizontal optical section (cLSM scan) of a neurobiotin backfill (dorsal deutocerebrum) showing single olfactory glomeruli (asterisks). The arrow points to the contralateral connection of the olfactory lobe. E Horizontal optical section (cLSM scan) of a neurobiotin backfill (ventral deutocerebrum) showing the corpus lamellosum. Asterisks mark single lamellae of the neuropil. F Voltexrendering (Amira) of a neurobiotin backfill showing the brain with deutocerebral neuropils and projections. Arrows point to antennal neurites projecting into the subesophageal ganglion. G 3D reconstruction of the brain with deutocerebral neuropils. Blue = olfactory glomeruli, yellow = corpus lamellosum. Contralateral connection of OG and CL is not shown. Abbreviations: an antenna, cl corpus lamellosum, clc contralateral connection, dc deutocerebrum, fg frontal ganglion, na nervus antennalis, no nervus opticus, np neurite projections, ol olfactory lobe, om ommatidia, pc protocerebrum, seg subesophageal ganglion. Scalebars: A = 10 mm, B = 500 μm, C-E = 100 μm.

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