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The Heart as a Pump

Respiration recap 1. List 2 activities where aerobic respiration occurs? 2. List 2 activities where anaerobic respiration occurs? 3. How do oxygen and glucose get to cells for respiration to occur ? Next time blood and circluation heart a different lesson. The Heart as a Pump.

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The Heart as a Pump

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  1. Respiration recap 1. List 2 activities where aerobic respiration occurs? 2. List 2 activities where anaerobic respiration occurs? 3. How do oxygen and glucose get to cells for respiration to occur? Next time blood and circluation heart a different lesson The Heart as a Pump LO: - to label the structure of the circulatory system to explain how the heart pumps blood around the body http://youtube.com/watch?v=N_LuJGobrpw&feature=related http://youtube.com/watch?feature=related&v=1SBMgh7IVGg

  2. Circulatory System • Blood- carry important substances around the body eg. ________, _________ to cells for __________. • Blood vessels -tube ________ travels through • Heart- pumps or pushes blood around the ______ Blood, oxygen, respiration, glucose, body

  3. Blood vessels • Arteries- thick walled carry oxygenated blood away from the heart • Capillaries – one cell thick where substances are exchanged by diffusion • Veins- thin walled with valves, carry deoxygenated blood back to the heart Path od red blood cell video

  4. Plasticization- blood vessels

  5. Circulation • Heart is a double pump • Left side pumps oxygenated blood to body • Right side pumps ___________blood to the lungs Label the capillaries on the diagram and trace with your figure the path blood takes

  6. Pulmonary arteries aorta Pulmonary veins Vena cava (vein) Left atrium right atrium Left atrioventicular valve Right atrioventicular valve Right ventricle Left ventricle Semi lunar valves

  7. The blood is the bodies taxi service- blood mobile TASK: Tell the story of the blood taxi journey • What does it pick up and transport around the body? • Where does it pick these substances up and where do these get dropped off? • What roads (blood vessels) does it travel through? These words may help you • Destination • -lungs • Body cells Roads Arteries Capillaries Veins Passengers O G CD W Remember the blood must always go thru the heart on its journey

  8. Read stories

  9. Heart Oxygenated blood to the body Deoxygenated blood from the body Label your diagram of the heart To left lung To right lung Oxygenated blood from the lungs Heart has 4 chambers 2 ventricles 2 atrium Blood enters thru the atria

  10. Key RBC = Red blood cells Start Here CO2 RBC RBC RBC RBC RBC RBC O2 Lungs Pushes RBC Pushes RBC Right side of Heart Left side of Heart O2 CO2 Cells

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