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Ch 18 V - Cardiac Cycle duration 16 minutes 28 seconds 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 5 plays 0
Chapter 18 - Heart Anatomy duration 23 minutes 20 seconds Chapter 18 - Heart Anatomy Chapter 18 - Heart Anatomy	Chapter 18 - Heart Anatomy Chapter 18 objectives 1-7. blood heart ventricle valve valves artery ventricles muscle side atrium left body trunk muscles layer walls aorta vessels surface lungs From Ashlee Tietje 33 plays 0