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Circumferential distributions of adrenergic and cholinergic nerves around pulmonary vein orifices. AO = aorta; CS = coronary sinus; IVC = inferior vena cava; LA = left atrium; LI = left inferior pulmonary vein; LS = left superior pulmonary vein; PA = pulmonary artery; RI = right inferior pulmonary vein; RS = right superior pulmonary vein; SVC = superior vena cava; VOM = vein of marshall.
(Reproduced with permission from Tan et al.4)
