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Pp

  1. 1. The Human Circulatory System
  2. 2. The heart
  3. 3. 2D - The heart
  4. 4. 3D- The heart
  5. 5. wires/tubes(different size)-fill with sponge andpaper. Sponge B A C Paper
  6. 6. Blood vesselsABc
  7. 7. The connection of blood vessels
  8. 8. Differences between blood vesselscharacteristics artery cappilary Veinlocation Located between Between arteriole Between heart and blood and venule cappilary and cappilary heartThickness of Thick wall Thin wall, only Thin wall & lessmuscular wall one cell thick muscularlumen Has small lumen Very small lumen Big lumenvalve No valve No valve Has valvefunction Carries blood Carries blood Carries blood away from the from arteries to towards the heart heart venuleBlood flow Rapid blood flow Slow blood flow Slow blood flowBlood pressure high low Very low
  9. 9. ROLE PLAY How the blood circulates through the heart1.Set up a heart using students as the walls, atriums, ventricles, and valves.2.Students should hold hands, or touch hands- except the people representing the valves-they willopen and close as the "Blood" people pass through.3.Select two students to be the "blood".4.Set up a chair on each side of the "heart" to represent the lungs5.Place a red object or paper at each lung-this represents an oxygen molecule that is picked up bythe "blood".6.The "blood" will travel through the atriums to the ventricles7.The atrium students gently "squeeze" the blood people through the valves- which will open andclose their outstretched arms.8.Show oxygenation of the blood by picking up the red object at the lungs, traveling through theheart, and picking up the blue object to show deoxygenation and use of oxygen by the body.9.Several runs-students will want a chance to be the "blood"! . Have fun!
  10. 10. Path of blood flow in the circulatory system Head and neck Artery Hands Pulmonary Pulmonary Lungs vein artery Heart Vena Aorta Vein cava Heart Liver Stomach and intestine KidneysDeoxygenated blood LegsOxygenated blood

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