HLSC 1F90 Lecture Notes - Lecture 15: High-Density Lipoprotein, Afterload, Ventricular Fibrillation
27 Jan 2018
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Document Summary
Prevalence of cvd globally (who: number 1 cause of death globally, 17. 5 million deaths due to cvd in 2012 (31% of all deaths, projected that 23. 3 million people will die annually in 2030 from cvd. Located in mediastinum: top of heart is in the upper right chest, below second rib, apex lies just above the diaphragm. Chambers of the heart: atria, top of the heart, thick walls, separated by interatrial septum, right atrium, receives deoxygenated blood from venous system. Inferior vena cava, superior vena cava, coronary sinus: tricuspid valve. Left atrium: receives oxygenated blood from pulmonary veins, 2mm thick (thicker than right atrium, bicuspid (mitral) valve, ventricles, lower chambers - larger than atria, pump blood away from the heart - via arteries. Separated by interventricular septum: right ventricle, triangular in shape, superior aspect forms a cone-shaped outflow tract leading to pulmonary artery, brings blood to lungs for oxygen.
