Title TRANS CARDIO ..docx ✅

NCM 112: MEDICAL SURGICAL NURSING ANATOMY AND PHYSIOLOGY OF CARDIOVASCULAR SYSTEM COLLEGE OF NURSING AND ALLIED MEDICAL SCIENCES 1 st SEMESTER A.Y. 2022 – 2023 Hanna Jeuline DR. Palapal Major Function of the Cardiovascular System: The heart pumps blood to the tissue supplying them with oxygen and other nutrients. HEART CHAMBERS Right Atrium (RA) Left Atrium (LA) Right Ventricle (RV) Left Ventricle (LV) --- PMI Systole Contraction/Depolarization  Isovolumetric contraction phase  Ejection phase Diastole Relaxation/Repolarization  Isovolumetric relaxation phase  Filling phase HEART VALVES Atrioventricular valves  Mitral valve (bicuspid valve)  Tricuspid valve Semilunar Valve  Aortic Valve  Pulmonic Valve CORONARY ARTERIES 1. Left Coronary Artery  Left Main Coronary Artery Left anterior descending artery  Left circumflex artery 2. Right Coronary Artery  Posterior descending artery PERFUSED DURING DIASTOLE CORONARY VEINS  Venous blood from these veins returns to the heart primarily through the CORONARY SINUS  Located posteriorly in the right atrium CARDIAC HEMODYNAMICS