Fig. 2
From: The innervation of the male copulatory organ of spiders (Araneae) – a comparative analysis
Palpal organs of Liphistius sp., and Davus fasciatus; external morphology (a,d), histology (b,e), and ultrastructure as documented by TEM (c,f). Arrows indicate planes chosen for semithin sections (b,e). Boxes in B and E show areas in the palpal organ where profiles of the bulb nerve were found. TEM micrographs in C and F show ultrastructural details of the bulb nerve. Abbreviations: B Bulb, BNv Bulb nerve, Cu Cuticle, Cy Cymbium, E Embolus, Gli Glial cell processes, HS Haemolymph space, Htd Haematodocha, Mt Mitochondrium, Ne Neurite, NeB Neurite bundle, N Nucleus of glial cell