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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: Auton Neurosci. 2021 Sep 28;236:102887. doi: 10.1016/j.autneu.2021.102887

Fig. 6:

Fig. 6:

Schematic summary of brainstem projections of auricular nerve afferents as demonstrated by transganglionic tracing studies. All three nerves (ABVN, auricular branch of the vagus; ATN, auriculotemporal nerve; GAN, greater auricular nerve) project to spinal trigeminal, paratrigeminal and solitary tract nuclei. In the NTS, afferents terminate preferentially in dorsal and lateral subnuclei. CY, cymba conchae; EAM, external auditory meatus; NTSm, medial subnucleus of the nucleus tractus solitarii; PTN, paratrigeminal nucleus; spinVi, subnucleus interpolaris of the spinal trigeminal nucleus; ST, solitary tract. Micrographs are from rat dorso-medial (a) and dorso-lateral (b) medulla, Klüver-Barrera stain. Bar 100 μm