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Fig. 3 | Frontiers in Zoology

Fig. 3

From: The innervation of the male copulatory organ of spiders (Araneae) – a comparative analysis

Fig. 3

Palpal organ of Hypochilus pococki; external morphology (a), histology (c), ultrastructure documented by TEM (d, e), and 3D reconstruction of the spermophor (green) and nervous tissue (yellow) as based on segmentation of histological image stacks (b). The arrow indicates the plane chosen for semithin section (a). The arrowhead marks the terminals of the bulb nerve and associated neurons (b). The box marks the cluster of neuronal somata, and ultrastructural details of neurites bundles (d) associated with cluster of neuronal somata (e). Abbreviations: HV Haemolymph Vessel, Cy Cymbium, E Embolus, GE Glandular epithelium, Gli Glial cell processes, Mt Mitochondria, Ne Neurite, N Nucleus of a neuron, S Spermophor, SC Cluster of neuronal somata, SF Seminal fluid

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