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Cardiac Anatomy. Frank A. Acevedo, PA-C. Thoracic Divisions. 3 major divisions Mediastinum contains most of thoracic structures Subdivisions exist. Heart. Pericardium - fibrous, serous Points of Attachment (fibrous pericardium) -central tendon of diaphragm -sternopericardial ligaments.
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Cardiac Anatomy Frank A. Acevedo, PA-C
Thoracic Divisions • 3 major divisions • Mediastinum contains most of thoracic structures • Subdivisions exist
Heart • Pericardium - fibrous, serous • Points of Attachment (fibrous pericardium) -central tendon of diaphragm -sternopericardial ligaments
Cardiac Surfaces • Sternocostal • Diaphragmatic • Base of the heart • Apex
Right Atrium • Superior and Inferior Vena Cava • IVC has a “valve” • Foramen Ovalis • Coronary Sinus
Right Ventricle • Less Muscular than Left • Ticuspid Valve • Papillary Muscles & Chordae Tendinae • Pulmonary Valve
Left Atrium • Forms most of base of the heart • Pulmonary veins • Mitral valve
Left Ventricle • Primary pump • Valvular control • Aortic sinus
Cardiac Innervation • Sympathetic fibers • Parasympathetic fibers • Afferent fibers of vagus nerve