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The Heart

The Heart. http://www.annerpino.com/2003/heart.jpg. Heart Anatomy. Heart Anatomy. Bicuspid / Mitral Valve. Pulmonary Artery / Trunk. Pulmonary Vein. Left Atrium. Left Ventricle. Aortic Valve. Aorta. Superior Vena Cava. Inferior Vena Cava. Pulmonary Valve. Tricuspid Valve.

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The Heart

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  1. The Heart http://www.annerpino.com/2003/heart.jpg

  2. Heart Anatomy

  3. Heart Anatomy Bicuspid / Mitral Valve Pulmonary Artery / Trunk Pulmonary Vein Left Atrium Left Ventricle Aortic Valve Aorta Superior Vena Cava Inferior Vena Cava Pulmonary Valve Tricuspid Valve Right Ventricle Right Atrium

  4. Time to cut open a heart!!!

  5. Heart Valves • 4 valves ensure that blood • flows in the proper direction • 1) Tricuspid (“right atrioventricular/AV-valve”) • - b/w RA & RV • 2) Bicuspid/Mitral (“left AV-valve”) • – b/w LA & LV • Pulmonary semilunar valve • - b/w RV & pulmonary trunk • Aortic semilunar valve • - b/w LV & aorta ** CHORDAE TENDINAE (“heart strings”) - Fibrous connective tissue inside ventricles that stabilize the AV valves

  6. Coronary Circulation • supply oxygenated, nutrient-rich blood to the muscles of the heart (cardiac muscle) • disease of this “mini-circulatory system” will lead to death of heart tissue • unfortunately, cardiac muscle is not able to regenerate • if too much tissue dies, the heart cannot pump effectively = heart attack

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