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. Author manuscript; available in PMC: 2016 Mar 22.
Published in final edited form as: Compr Physiol. 2012 Jan;2(1):221–254. doi: 10.1002/cphy.c100083

Figure 3. Schematic location of central chemoreceptor sites.

Figure 3

Locations of central chemoreceptors; the classic view: chemoreception located at ventral medullary surface (left panel) and the current view: chemoreception is widely distributed in hindbrain (right panel). Abbreviations: R, rostral; M, middle; C, caudal; LHA, lateral hypothalamus; DR, dorsal raphe; FN, fastigial nucleus; 4v, fourth ventricle; LC, locus ceruleus; 7N, facial nerve; cNTS, caudal nucleus tractus solitarious; AMB, ambiguous; VII, facial nucleus; SO, superior olive; PBC, pre-BÖotzinger Complex; rVRG, rostral ventral respiratory group; cVLM, caudal ventrolateral medulla; RTH/pFRG, retrotrapezoid nucleus/parafacial respiratory group; and Pn, pons [modified from Figure 1 in Nattie (168) and used with permission].