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Definition of Plexus cardiacus
1. Noun. A plexus of nerves supplying the heart and nearby structures.
Medical Definition of Plexus cardiacus
1. A wide-meshed network of anastomosing cardiopulmonary and splanchnic nerves arising from the afferent and autonomic nerve fibres (sympathetic) and vagus (parasympathetic) nerves, surrounding the arch of the aorta, the pulmonary artery, and continuing to the atria, ventricles, and coronary vessels. Synonym: plexus cardiacus. (05 Mar 2000)