1. 6th Grade Science Joints and Damage

2. I. Joints Types 1. Immovable joints 2. Movable i. Ligaments ii. Motions a. Hinge b. Ball and socket c. Pivot d. Gliding

3. B. Structure 1. Cartilage on ends 2. Synovial Fluid 3. Capsule

4. II. Injuries A. Fractures 1. Bone breaks into pieces 2. Compound Fractures B. Dislocation – Bone leaves joint C. Sprain – Stretch ligaments

5. III. Diseases A. Osteoporosis

6. Osteoporosis Rickets – Poor bone hardening

7. B. Arthritis 1. No joint motion

8. C. Rickets 1. Low Calcium

9. IV. Diagnosis X-rays

10. B. MRI(Magnetic Resonance Imaging) 1. Atoms in body vibrate with magnet 2. Can image soft tissues 3. Very expensive

11. V. Treatments A. Casts B. Joint Replacement C. Arthroscopy