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. 2012 Sep 6;219(1-2):48–61. doi: 10.1016/j.neuroscience.2012.05.070

Fig. 8.

Fig. 8

Drawing summarising the four main axonal pathways projecting from the NTS to the PVN and surrounding region. Ascending NTS axons project to at least four neuronal targets in and around the PVN that are associated with cardiovascular control: (1) Projections to the spinally projecting neurons (green) within the parvocellular regions of the PVN. (2) Projections to the nNOS-containing magnocellular neurons (blue) of the PVN. (3) Projections to the GABA interneurons (red) surrounding the PVN, which are in synaptic contact (Watkins et al., 2009) with spinally projecting neurons. (4) Projections to the nNOS-containing interneurons (pink) that border the PVN (Watkins et al., 2009). The release of NO from these neurons could affect GABA interneurons and/or spinally projecting neurons. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)