Fig. 5
From: The complex simplicity of the brittle star nervous system
Representative semithin sections from the series that was used to generate the 3D models shown in Fig. 4. The series was cut in the proximal-to-distal direction. The Z-coordinate (the position of the section in the series) is indicated in the top left corner. Abbreviations: ac – arm coelom; am – aboral intervertebral muscle; amn – aboral mixed nerve; dln – distal lateral hyponeural nerve; ec – epineural canal; ee – epineural epithelium; en – ectoneural part of the radial nerve cord; hin – horizontal intermuscular hyponeural nerve; hl – hemal lacuna; hn – hyponeural part of the radial nerve cord; il – intervertebral ligament; ljn – lateral juxtaligametal node; mhn – median hyponeural nerve; ojn – oral juxtaligamental node; om – oral intervertebral muscle; omn – oral mixed nerve; pd – podium; pg – podial ganglion; pln – proximal lateral hyponeural nerve; pmn – proximal muscle nerve; pn – podial nerve; rnc – radial nerve cord; rwc – radial water-vascular canal; s – spine; sg – spine ganglion; sn – spine nerves; tsn – tentacle scale nerve