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A Voyage Through the Human Body

A Voyage Through the Human Body. Mr. Knebel’s 4 th Grade Science Class. Skeletal System. Your body has about 206 individual bones. Each is used to perform a specific function. More About Bones. Bone is composed of a flexible protein called collagen.

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A Voyage Through the Human Body

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  1. A Voyage Through the Human Body Mr. Knebel’s 4th Grade Science Class

  2. Skeletal System • Your body has about 206 individual bones. • Each is used to perform a specific function.

  3. More About Bones • Bone is composed of a flexible protein called collagen. • It is also made of a ridged mineral salt of calcium and phosphorus.

  4. Facts • The longest bone in the body is the femur (located in the upper leg) • The smallest bone in the body is the stirrup (located in the inner-ear)

  5. The Skull • The skull is composed of 18 flat bones (plates) that fuse as we grow. • The skull may take up to 40 years to fully harden.

  6. Cartilage • Cartilage is a soft rubbery material. • It is used to connect our ribs to the sternum (breastbone), and the ends of bones in moving joints.

  7. Connects the Bones. • Tendons connect muscle tissue to bone. • Ligaments connects bone to bone. They often guide the direction of the tendons.

  8. FOSS Investigations • Bones • Joints • Muscles • Coordination

  9. Web Resources • www.fossweb.com • http://www.bbc.co.uk/science/humanbody/ • http://www.vilenski.org/science/humanbody/

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