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. 2021 Dec 24;15:793161. doi: 10.3389/fnana.2021.793161

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Copyright © 2021 Hirsch, Kohl, Wang and Sela-Donenfeld.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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dA3 axonal projections. A schematic sagittal section of a main viscerosensory autonomic axonal circuit of the dA3 subclass. dA3-derived NTS nuclei (purple circle) are shown to project multiple axonal trajectories (green broken lines) to various target sites in the hindbrain or spinal cord (green circles). NTS, nucleus tractus solitaries; Pfrg/RTN, parafacial respiratory group/reticulotegmental nucleus; Ambc, ambiguous nucleus, compact part; cVRG, caudal ventral respiratory group; NRA, nucleus retro ambiguous; PBC, parabrachial.