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The Circulatory System

The Circulatory System. FUNCTION: Delivery system that moves oxygen and nutrients to the body's cells , and carries away carbon dioxide and waste materials. www.biosbcc.net/doohan/ sample/htm/heart.htm. Parts of the Circulatory System. Divided into 3 major parts: Heart Blood

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The Circulatory System

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  1. The Circulatory System

  2. FUNCTION:Delivery system that moves oxygen and nutrients to the body's cells, and carries away carbon dioxide and waste materials.

  3. www.biosbcc.net/doohan/ sample/htm/heart.htm

  4. Parts of the Circulatory System • Divided into 3 major parts: • Heart • Blood • Blood Vessels

  5. http://users.tpg.com.au/users/amcgann/body/circulatory.html

  6. Blood Vessels Hollow tubes that circulate your blood • Arteries • Veins • Capillaries

  7. Arteries • Carry blood away from the heart • Have strong, muscular walls • The inner layer is very smooth so that the blood can flow easily http://hes.ucf.k12.pa.us/gclaypo/circdia.html

  8. Veins • Carry blood to the heart • Transport waste-rich/ oxygen-poor blood back to the lungs and heart • Valves inside the veins make blood move in one direction http://hes.ucf.k12.pa.us/gclaypo/circdia.html

  9. Capillaries • Only one cell thick • Connect arteries & veins • Food and oxygen released to the body cells • Carbon dioxide and other waste products returned to the bloodstream http://sln.fi.edu/biosci/systems/circulation.html

  10. http://users.tpg.com.au/users/amcgann/body/circulatory.html

  11. The Heart • Size of your fist • Thick muscular walls • 4 chambers –L/R Atrium, L/R Ventricle

  12. http://hes.ucf.k12.pa.us/gclaypo/circdia.html

  13. Close up of heart valveHeart sounds are made by the valvesas they open and close http://hes.ucf.k12.pa.us/gclaypo/circdia.html

  14. Blood • Carries nutrients, water, oxygen and waste products to and from your body cells. • White blood cells protect the body from germs http://hes.ucf.k12.pa.us/gclaypo/circdia.html

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