2. Aim: How is the human skeletal system organized?

3. What are the functions of the skeletal system? 1.provide shape & support 2.aid in movement 3.produce red blood cells 4.protect vital organs Skull – brain Ribs – heart and lungs Vertebrae – spinal cord 5. Store minerals (calcium & phosphorus)

4. What are the three parts of bone? 1.MEMBRANE - repairs injuries, attaches to muscles 2. BONY LAYER – bone cells. Minerals help keep them hard 3.MARROW – soft tissue that produces blood cells How are bones held together? - by CONNECTIVE TISSUE

5. What are the types of connective tissue? 1.CARTILAGE – soft tissue between bones, acts as a cushion - strong, flexible, & very slick Ex: disks between vertebra 2.LIGAMENT – tissue which connects 1 bone to another. Ex: collateral ligaments in knee 3.TENDONS – tissue which connects a muscle to a bone Ex: Achille’s tendon in ankle

6. What is a joint? -The area where 2 bones meet. What are the different types of joints? 1. FUSED/FIXED/IMMOVABLE – no movements, bones are fused together Ex: cranium, pelvis

7. What are the Different types of Joints? 2. BALL AND SOCKET -Allows movement in all directions -Ex. Hip, Shoulder.

8. What are the Different types of Joints? 3. HINGE Joint – one way movement back and forth Ex: knee, elbow

9. What are the Different types of Joints? 4. PIVOT - turn side to side ( rotation around a point). Ex: neck

10. What are the Different types of Joints? 5. GLIDING – little movement, bones slide over, around each other Ex: vertebrae, ankles, wrist

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12. BrainPop Joints and Skeletal system under Health