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Fig. 6 | BMC Evolutionary Biology

Fig. 6

From: The first data on the innervation of the lophophore in the rhynchonelliform brachiopod Hemithiris psittacea: what is the ground pattern of the lophophore in lophophorates?

Fig. 6

Ultrastructure of the main brachial nerve in Hemithiris psittacea. a General view of the epithelium, which contains perikarya and neurites of the main brachial nerve. Epithelial cells (pink) form projections, which surround perikarya (violet). b Aggregation of perikarya, which are located at the base of the main brachial nerve. c Basal portion of the neuropil: aggregation of neurites, including giant nerve fiber (gnf, marked by green). Abbreviations: ce – cell in extracellular matrix; ecm – extracellular matrix; epc – epidermal cell; gnf – giant nerve fiber; pk – perikaryon; nf – nerve fibers

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