BIOLOGY Lecture Notes - Superior Vena Cava, Tricuspid Valve, Heart Valve
Document Summary
Brie y describe the anatomy and physiology of the heart. The heart is the primary organ of the circulatory system of our body. This is st-sized organ which pumps blood throughout the body. It lies in mediastinum (central compartment of thoracic cavity surrounded by loose connective tissue). Size- length is 12 cm, width of 9 cm at its broad, thickness is 6 cm, weighs about. Pericardium is the membrane that surrounds and protects the heart. The layers of the heart include epicardium, myocardium and endocardium. The heart consists of 4 chambers - right atrium, left atrium, right ventricle and. The valves of the heart include semilunar (pulmonary and aortic valves) and. This is the cardiovascular system which consists of heart and blood vessels (artery and vein). Veins carry deoxygenated blood towards the heart whereas the arteries carry oxygenated blood end from the heart.
