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07:57 Ch 18 VI - Cardiac Cycle Diagram Ch 18 VI - Cardiac Cycle Diagram	Ch 18 VI - Cardiac Cycle Diagram Ch 18 objectives 12-14. valves pressure blood heart ventricle volume ventricles atrium contraction phase systole semi alright wave diastole av aorta relaxation period activity From Ashlee Tietje 24 plays 0
16:28 Ch 18 V - Cardiac Cycle Ch 18 V - Cardiac Cycle	Ch 18 V - Cardiac Cycle Ch 18 objectives 13-14. blood valves pressure heart phase volume ventricle valve ventricles systole atrium end semi contraction picture sound lub dub av relaxation From Ashlee Tietje 4 plays 0