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

parts of the circulatory system
Parts of the Circulatory System
  • Divided into 3 major parts:
    • Heart
    • Blood
    • Blood Vessels
blood vessels
Blood Vessels

Hollow tubes that circulate your blood

  • Arteries
  • Veins
  • Capillaries
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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

veins
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

capillaries
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

the heart
The Heart
  • Size of your fist
  • Thick muscular walls
  • 4 chambers –L/R Atrium, L/R Ventricle
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Close up of heart valveHeart sounds are made by the valvesas they open and close

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

blood
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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