Fig. 17
From: The complex simplicity of the brittle star nervous system
ELAV in the arm nervous system of O. brevispinum. a and a’ Low magnification view of a RNC segment. Whole-mount specimen. Z-projection of a confocal stack. b and b’ Low-magnification view of a longitudinal section of the RNC. The insets show higher magnification of the proximal muscle hyponeural nerve. c and c’ Cross section of the RNC at the ganglionic swelling level. d – d”’ High-magnification view of a longitudinal section of the RNC showing that there is no co-labeling of the same cells with the ERG1 and anti-ELAV antibodies. Abbreviations: en – ectoneural neuroepithelium; hn – hyponeural neuroepithelium; pd – podium; pmn – proximal muscle hyponeural nerve; rnc – radial nerve cord