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. Author manuscript; available in PMC: 2016 May 27.
Published in final edited form as: Brain Behav Evol. 2015 May 27;85(3):170–188. doi: 10.1159/000381415

Figure 5.

Figure 5

Confocal surface reconstructions illustrating the three-dimensional structure of representative hyrax follicle-sinus complex (FSC) innervation and mechanoreceptors. A) Epidermal and rete ridge collar (RRC) innervation, including small-caliber fibers and Merkel endings (submental FSC). B) Small-caliber innervation at the level of the inner conical body (mystacial FSC). C-D) Semicircular cusp of Merkel innervation at the level of the rete ridge collar (mystacial FSC). Arrowheads demarcate edges of the Merkel complex cusp. E) Extensive large-caliber innervation and Merkel endings at the level of the ring sinus (mystacial FSC). F) Large-caliber innervation and club endings at the level of the ring sinus (mystacial FSC). Immunolabeling shown consisted of PGP (universal neuronal marker; protein gene product 9.5).