Anatomy of torso , cardiovascular system : heart
Structures
atria (interatrial septum , musculi pectinati ) • ventricles (interventricular septum , trabeculae carneae , chordae tendinae , papillary muscle ) • valves • cusps
Regions
base • apex • grooves (coronary/atrioventricular , interatrial , anterior interventricula , posterior interventricular ) • surfaces (sternocostal , diaphragmatic ) • borders (right , left )
Right heart
(vena cavae , coronary sinus ) → right atrium (auricle , fossa ovalis , limbus of fossa ovalis , crista terminalis , valve of the inferior vena cava , valve of the coronary sinus ) → tricuspid valve → right ventricle (conus arteriosus , moderator band/septomarginal trabecula ) → pulmonary valve → (pulmonary artery and pulmonary circulation )
Left heart
(pulmonary veins ) → left atrium (auricle ) → mitral valve → left ventricle → aortic valve (aortic sinus ) → (aorta and systemic circulation )
Layers
pericardium : fibrous pericardium • serous pericardium (pericardial cavity , epicardium/visceral layer ) • pericardial sinus myocardium • endocardium • cardiac skeleton (fibrous trigone , fibrous rings )
Conduction system
Cardiac pacemaker • SA node • AV node • bundle of His • Purkinje fibers
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