Figure 3
From: Trapped in freshwater: the internal anatomy of the entoproct Loxosomatoides sirindhornae
Details of the nephridial system of Loxosomatoides sirindhornae. (a) Longitudinal section through the calyx showing flame bulbs close to the esophagus. (b). Longitudinal section slightly past the esophagus showing the large terminal duct and a lateral part of the central nervous system with nerves emanating from it. (c). Longitudinal section through the tentacle membrane with retracted tentacles. (d). Longitudinal section behind esophagus showing ciliation (arrow) in the terminal duct of the nephridial system. (e). Maximum intensity projection of a confocal image stack of alpha-tubulin staining in the stalk showing terminal organs and efferent ducts of the protonephridia. (f). Maximum intensity projection of a confocal image stack of alpha-tubulin staining showing a terminal organ and terminal duct of the protonephridial system in the calyx. Abbreviations: atc - atrial cavity, cut - cuticle, ef - efferent duct of the terminal organ, es - esophagus, lcns - lateral central nervous system, mc - mesenchymatous cell, n - nerve, rt - retracted tentacle, tc - tentacle cilia, td - terminal duct, tm - tentacle membrane, to - terminal organ, vmc - vesicular mesenchymatous cell.