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. 2015 Oct 29;228(1):26–46. doi: 10.1111/joa.12400

Figure 2.

Figure 2

NS distributed on the conus arteriosus and the root of the pulmonary trunk of rabbit ventricles. (A–F) Small epicardial ganglia found on the arterial cone that contain NS positive for choline acetyltransferase (ChAT; in red), for neuronal nitric oxide synthase (nNOS; in green), and biphenotypic somata (labelled by asterisks), i.e. simultaneously positive for ChAT and nNOS. In (A) and (C), note the comparatively small size of NS positive for nNOS; (D–F) ganglion of two neurons, one of which is ChAT‐positive and another biphenotypic with positivity for nNOS (*). (G–I) A little ganglion located nearby a thick nerve that accessed cardiac ventricles throughout the arterial part of the heart hilum. NS positive for ChAT are shown in red, for tyrosine hydroxylase (TH) in green, and biphenotypic somata, i.e. simultaneously positive for ChAT and TH, are labelled with asterisks. Numerous SIF cells strongly positive for TH (labelled arrowheads) and clustered into tiny groups are located in between NS and a nerve containing plentiful NFs positive for TH.