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15:03 Ch 20 I - Lymphatic Vessels Ch 20 I - Lymphatic Vessels	Ch 20 I - Lymphatic Vessels Ch 20 and 21 objectives 1-4. fluid cells lymph vessels things body trunks capillaries plasma blood trunk duct heart picture rest side venus lymphatics organs muscles From Ashlee Tietje 5 plays 0
23:20 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 29 plays 0