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Cardiovascular System (INTRINSIC CONDUCTION SYSTEM (Sinoatrial (SA) Node =…
Cardiovascular System
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DISORDERS
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Fibrillation- Rapid uncoordinated shuddering of heart muscle which prevents heart from acting as a pump
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CARDIAC CYCLE
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Ventricular Systole- Blood pressure builds before ventricle contracts, pushing out blood
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Early Diastole- Atria finish refilling, ventricular pressure is low
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BLOOD VESSEL ANATOMY
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Tunica Media- Middle, smooth muscle
Tunica Externa- Outermost, fibrous connective tissue
LAYERS
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WALL
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Myocardium- Middle, thick muscle layer
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