Innervation of the Human Cavum Conchae and Auditory Canal: Anatomical Basis for Transcutaneous Auricular Nerve Stimulation

Figure 2

Masson’s trichome staining (a) and immunostaining for neurofilaments ((b), (d), and (e)) and S100 protein (c) in sections of the cavum conchae, showing nerve profiles inside (c) and out of ((b), (d), and (e)) the auricular cartilage. Image in (a) corresponds to the auriculocephalic angle. Arrows indicate nerve profiles. Scale bar is identical for (b)–(e).

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