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HUMAN JOINTS

HUMAN JOINTS. I can identify the types of joints and compare the way they work. . Samantha Lauderdale DWE VSD. Why are there joints in my body?. If you didn’t have them, you couldn’t move. You’d be more stiff than the tin man!. What is a joint?. A joint is where two bones meet.

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HUMAN JOINTS

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  1. HUMAN JOINTS I can identify the types of joints and compare the way they work. Samantha Lauderdale DWE VSD

  2. Why are there joints in my body? If you didn’t have them, you couldn’t move. You’d be more stiff than the tin man!

  3. What is a joint? • A joint is where two bones meet. • The bones are connected to each other by tendons

  4. There are many kinds of joints • Sliding Joints • Ball-and-Socket Joints • Pivot Joints • Hinge Joints • Fixed Joints Here are some of them:

  5. Sliding Joints • Sliding joints allow a small amount of movement. • The bones of your backbone are connected at sliding joints. • They have cartilage between them, which allows the backbone to twist and bend.

  6. Ball-And-Socket Joints • Ball-and-socket joints allow the most movement. • Your leg and arm can move in many directions because a ball-and-socket joint connects them.

  7. Pivot Joints • The pivot joint allows movement from side to side. • A hole in one bone fits over a pointed part in the other. • Turn your head from side to side. Your skull is attached to the backbone by a pivot joint.

  8. Hinge Joint • The hinge joint allows bones to move back and forth, but only in one direction. • Your elbow is a hinge joint. So is your knee.

  9. Fixed Joints • Some bones are permanently connected, or fused. • You have fixed joints in your skull.

  10. Lets see some joints in action! How many different types of joints can you see moving here? http://www.shockfamily.net/skeleton/ARM.MOV

  11. List as many types of joints as you can remember Draw a picture of two of them Choose two joints, and tell me how they are alike, and how they are different LETS REVIEW:

  12. Now you’re an expert!

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