Nerves of the Heart, Anterior View

Description

Anterior cardiac anatomy fills the frame, with the base of the heart superior and the apex directed inferiorly and to the left. Fine neural filaments converge toward the cardiac plexus at the root of the great vessels, then distribute across the anterior surface of the pericardium and superficial myocardium alongside the coronary vessels. Red coronary arteries course in the coronary (atrioventricular) sulcus and the anterior interventricular sulcus, with blue cardiac veins tracking nearby, while green lymphatic vessels and nodes follow the epicardial fat and major vascular pedicles. Relation is explicit: nerves travel with arteries, veins, and lymphatics. Anterior mapping of the cardiac nerves matters because it mirrors how autonomic input reaches the sinoatrial and atrioventricular nodal regions through the superficial and deep cardiac plexuses, then follows periarterial pathways over the epicardium. This is the perspective you want when teaching why high cervical or upper thoracic sympathetic chain pathology can shift heart rate and contractility, and why vagal stimulation can precipitate bradyarrhythmias. It also fits surgical reality: during median sternotomy, pericardiotomy, internal mammary artery harvest, or dissection around the ascending aorta and pulmonary trunk, small autonomic branches can be stretched or divided. Small fibers, real consequences. Cardiothoracic surgery texts, anesthesia teaching on autonomic reflexes (including vagal responses during pericardial traction), and medical school modules on the cardiac plexus and coronary circulation all benefit from this combined neurovascular and lymphatic overview. Use it in atlases, board-style question explanations, or patient-facing education on postoperative rhythm changes and pericardial inflammation patterns. Anatomical accuracy verified by SciePro's Medical Advisory Board.