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The Skeletal System

The Skeletal System. http:// www.youtube.com/watch?v=vya4wpS2fgk. Introduction. The skeletal system is not just made up of bones. It is made up of bones, cartilages, joints, ligaments, and other connective tissues. The skeletal system has 5 primary functions……… . 5 Functions.

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The Skeletal System

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  1. The Skeletal System http://www.youtube.com/watch?v=vya4wpS2fgk

  2. Introduction • The skeletal system is not just made up of bones. • It is made up of bones, cartilages, joints, ligaments, and other connective tissues. • The skeletal system has 5 primary functions………

  3. 5 Functions 1.Support 2.Storage 3.Blood Cell Production 4.Protection 5.Leverage

  4. Support • The skeletal system provides structural support for the entire body. • Individual bones, or groups of bones provide a framework for the attachment of soft tissues and organs. Th

  5. Support • Your bones are as strong as CONCRETE, but lighter. • That is why your bones can support the weight of your body. • Without the skeleton to pull against, muscles would not be able to make us sit, stand, run, or even walk.

  6. Storage • Bones are a storage center for calcium salts. • Calcium salts maintain normal concentrations of calcium and phosphate ions in body fluids.

  7. Storage • Calcium ions have a lot to do with the CLOTTING PROCESS. • Bones also store lipids in yellow marrow.

  8. Blood Cell Produciton Th • Red blood cells, white blood cells, and other blood elements are produced in the RED MARROW of the bone. • Red marrow fills the internal cavities of many bones.

  9. Protection • Soft tissues and organs are usually surrounded by bones or skeletal elements. • Ribs protect the heart andlungs • Skull encloses the brain • Vertebrae shield the spinal cord • Pelvis protect important digestive and reproductive organs.

  10. Leverage • The bones act as levers • These levers can change magnitude and direction of the forces generated by skeletal muscles. • The resulting movements can be as simple as the motion of a fingertip to doing a backflip.

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