Modern Data on the Innervation of the Lophophore in Lingula anatina (Brachiopoda) Support the Monophyly of the Lophophorates
Fig 9
The lower brachial nerve in Lingula anatina.
Z-projections of a portion of the brachium after staining for serotonin (yellow) (A), α-tubulin (cyan) (B), and FMRF-amide (green) (C). The lower brachial nerve is pointed by arrowheads. (D) Perikarion (p) and neurite bundles (nb) of the lower brachial nerve; TEM. (E) Transverse neurite bundles (trn), which pass from the tentacles and are associated with the lower brachial nerve; TEM. Abbreviations: bf, brachial fold; ct, connective tissue; ec, epidermal cell; gp, group of FMRFamide-like immunoreactive perikarya; mc, mitochondria; nf, nerve fiber; RER, rough endoplasmic reticulum; sv, synaptic vesicles.