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. Author manuscript; available in PMC: 2017 Feb 1.
Published in final edited form as: Heart Rhythm. 2015 Oct 13;13(2):593–601. doi: 10.1016/j.hrthm.2015.10.018

Figure 2.

Figure 2

Neural and myocardial content of the LOM/VOM. A, human serial (top to bottom) sections showing LOM isolated from the left atrial wall (top), and with discrete insertions in the left atrial wall and coronary sinus (hematoxylin and eosin [H&E] stain x 10).3 B, Immunohistochemical staining for tyrosine hydroxylase showing positively in nerve (brown staining—arrow). M = myocardium. C, Dual staining for DBH (blue) and ChAT (brown) shows a predominance of cholinergic nerve fibers within the nerve bundles of the LOM (x 5 magnification)2. D, Histochemical whole canine heart staining of parasympathetic innervation. The ventrolateral cardiac nerve traverses the fold anterior to the pulmonary veins on its way to innervate the inferior left ventricle. (Courtesy of Dainius Pauza, MD).