Anatomy and Cell Biology 3319 Lecture 6: Coronary & Pumonary Circulation
9 Mar 2017
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Cannot hear sound through look for the closest (cid:862)soft(cid:863) Disallowing the bone from sound *examq: aortic = 2nd ic space @ margin, pulmonary = 2nd ic sternal margin, mitral = 5th ic space, tricuspid = 5th ic space. Since the fibrous skeleton ( see pamt) is electrically dead, we need a conduction system: sa node (pacemaker) (gap junctions, av node, av bundle bundle of. Semilunar valves (aorta cross section view: 3 leaflets, close: prevent blood from coming back from the aorta, directed into the r/l coronary valves, every time heart beats, the heart gets a pulse of fresh blood to feed it. Left: left coronary, circumflex: behind the heart, anterior interventricular, anastomosis: where right & left coronary arteries meet, as they meet the other parts of the heart are also receiving blood (like holes in. To form a circuit as opposed to 2 lines so if one gets blocked (thrombosis) blood flows through the other side (provide a dual circulation.
