Fig. 19
From: The complex simplicity of the brittle star nervous system
Acetylated tubulin in the radial nerve cord (RNC) of O. brevispinum. a Low-magnification aboral view. Maximum intensity Z-projection of a confocal image stack. b High-magnification view of neuronal fibers in the RNC. Arrowheads indicate commissural bundles crossing into the contralateral regions of the RNC. c Sagittal section through the ganglionic swelling of the RNC. Dual labeling with anti-acetylated tubulin (magenta) and anti-ELAV (green) antibodies. The nuclei are stained with DRAQ. Note a “giant” neuron (gn) in the distal region of the ganglionic region co-labeled with ELAV and acetylated tubulin. Abbreviations: gn – “giant” neuron; pmn – proximal muscle nerve; rnc – radial nerve cord; sn – spine nerve