HTHSCI 1CC6 Lecture Notes - Lecture 29: Superior Vena Cava, Mitral Valve, Interventricular Septum
25 Oct 2018
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Document Summary
Super 7 (using lecture slides and notes to guide. ) Atria - 2 superior chambers of the heart "the receiving chambers". Contract minimally and push blood down to ventricles. Blood enters right atrium from 3 veins - superior vena cava (blood from superior region) The left atrium receives blood from the lungs. Propel blood out of the heart into circulation. Left ventricle forms the apex of the heart. Right ventricle pumps blood to pulmonary trunk which routes blood to lungs where gas exchange can occur. Left ventricle ejects blood through aorta (the largest artery in the body). Directional flow- in order to properly function blood can only flow in one direction. This is ensured by valves (discussed in detail further down) Apex/base- the base is the top of the heart formed by the left atrium, into which the four pulmonary veins drain. The apex is formed by the left ventricle can be palpated at fifth intercostal space.
