HLSC 1F90 Lecture Notes - Lecture 22: Coronary Artery Disease, Right Coronary Artery, Superior Vena Cava
31 Mar 2017
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17. 5 million deaths due to cvd in 2012 (31% of all deaths: 7. 4 million were due to coronary heart disease. Projected that 23. 3 million people will die annually in 2030 from cvd. Top of heart upper right chest, below second rib and right of sternum. Apex lies just above the diaphragm. Atria: top of the heart, thin walls, separated by interatrial septum. Right atrium: receives deox blood from venous system, inferior vena cava, superior vena cava, coronary sinus. Coronary sinus returns deox blood after coronary artery gives ox blood to heart: tricuspid valve. Left atrium: receives oxygenated blood from pulmonary veins, 2 mm thick (thicker than right atrium, bicuspid (mitral) valve. Ventricles: left ventricle pumps blood to the body, right ventricle pumps blood to the lungs. Right ventricle: triangular in shape, superior aspect forms a cone-shaped outflow tract leading to pulmonary artery, brings blood to lungs for oxygen.
