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Cardiovascular System (Disorders (Murmur- Irregular Heart Sounds, Valve…
Cardiovascular System
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Blood Vessel Differences
Veins
Thinner, Large Lumen, Carry Low Pressure Blood, Blood Moves by "Milking" Action of Muscles, Contains Many Minivalves to Prevent Backflow
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Arteries
Thickest Layer, Small Lumen, Carry High Pressure Blood, Moved Moves by Heart Pumping
Cardiac Cycle
Ventricular Systole
Blood Pressure Builds Before Ventricle Contracts, Pushing Out Blood
Early Diastole
Atria Finish Refilling, Ventricular Pressure Low
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Layers of Heart
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Myocardium- Middle, Thick Muscle Layer
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Intrinsic Factors
S-A Node, A-V Node, AV Bundle, Purkinje Fibers