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Fig. 4 | Zoological Letters

Fig. 4

From: Neuromuscular study of early branching Diuronotus aspetos (Paucitubulatina) yields insights into the evolution of organs systems in Gastrotricha

Fig. 4

Pharyngeal nervous system and canal system of Diuronotus aspetos. a, b Anterior is pointing at the top; c–n dorsal is pointing at the top. a–h Schematic drawings with nerves in blue and pharyngeal system in yellow, nuclei in grey, glands in green and cilia in red. a Dorsal section of the pharynx. b Ventral section of the pharynx. c–h Successive transverse sections of the pharynx from anterior to posterior. i–n CLSM virtual transverse sections at the same levels as (c–h). Acetylated α-tubulin-LIR in glow and DAPI in cyan. adpn, anterior diagonal pharyngeal nerve, apg anterior pharyngeal gland, avrc anterior ventro-median right pharyngeal canal, bnr buccal nerve ring, dpc dorsal pharyngeal canal, dpcn dorso-anterior pharyngeal canal nerve, dpn dorsal pharyngeal nerve, lpvc left posterior ventro-median canal, mk mouth kinocilium, pdvn pharyngeal dorso-ventral nerve, pk posterior pharyngeal kinocilium, plgn pharyngeal longitudinal gland nerve, plkn pharyngeal longitudinal kinocilium nerve, pmdn paramedian dorsal pharyngeal nerves, pnr pharyngeal nerve ring, ppc posterior pharyngeal cluster, rpvc right posterior ventro-median canal, vlpc ventro-lateral pharyngeal canal, vlpg ventro-lateral pharyngeal ganglion, vpn ventral pharyngeal nerve

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