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Fig. 4 | Frontiers in Zoology

Fig. 4

From: The neuroanatomy of Barentsia discreta (Entoprocta, Coloniales) reveals significant differences between bryozoan and entoproct nervous systems

Fig. 4

Three-dimensional reconstructions of the nervous system of Barentsia discreta after mono- and double staining for 5-HT (serotonin) and acetylated α-tubulin. a 3D-reconstruction combined with a volume-rendering of the fronto-lateral view of the upper portion of the calyx, (b) 3D-reconstruction combined with a volume-rendering of the fronto-lateral view of the calyx and a portion of the stalk, (c) 3D-reconstruction; top view showing innervations of tentacles and serotonergic nerve cells. Abbreviations: ab, aboral nerves; an, abfrontal tentacle nerve; arc, arcuate nerves; en, esophageal nerves; epk, perikarya of esophageal nerves; g, ganglion; lfn, latero-frontal tentacle nerve; ln, lateral nerve; ln1, lateral nerve 1; ln2, lateral nerve 2; ln3, lateral nerve 3; pn, peripheral calyx nerves; ppk, perikarya of peripheral nerves; sc, star-like cells; sn, stalk nerve; tc, tentacle cord; tc1, tentacle cord 1; tc2, tentacle cord 2; tc3, tentacle cord 3; tn, tentacle nerve

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