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Articulations

Articulations. Chapter 8. Structural Classification of Joints. Fibrous no joint cavity, bones held together with collagen fibers Cartilagnous no joint cavity, bones held together with cartilage Synovial have a “synovial” cavity, bones held together with an enclosed capsule & ligaments.

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Articulations

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  1. Articulations Chapter 8

  2. Structural Classification of Joints • Fibrous • no joint cavity, bones held together with collagen fibers • Cartilagnous • no joint cavity, bones held together with cartilage • Synovial • have a “synovial” cavity, bones held together with an enclosed capsule & ligaments

  3. Functional Classification of Joints • Synarthroses (singular = synarthrosis) • Immovable joints • Amphiarthroses (singular = amphiarthrosis) • Slightly movable joints • Diarthroses (singular = diarthrosis) • Freely movable joints

  4. Suture: a fibrous synarthrosis

  5. Synchondrosis: a cartilaginous synarthrosis

  6. Syndesmosis: a fibrous amphiarthrosis

  7. An amphiarthrotic synchondrosis

  8. Symphysis: a cartilaginous amphiarthrosis

  9. Synovial Joints

  10. The shoulder joint

  11. Types of Movements Possible at Synovial Joints

  12. Gliding

  13. Flexion Flexion decreases the angle of a joint

  14. Extension Extension increases the angle of a joint

  15. Extension of the shoulder

  16. Hyperextension moves a jointbeyond the usual extended angle

  17. Movements of the neck

  18. Special movement of the ankle

  19. Abduction,Adduction &Circumduction

  20. Rotation

  21. Special movements of the antebrachium

  22. Special movements of the foot

  23. You can do this with your hips & shoulders too!

  24. Also possible with shoulders (but not hips)

  25. Ok?

  26. Types synovial joints

  27. Hingejoints These are uniaxial. Examples include the elbow, knee and phalanges.

  28. Pivot Pivot joints are uniaxial. The proximal radioulnar joint is the best example.

  29. Condyloid joints Condyloid joints are often biaxial.

  30. Saddle joints Saddle joints are biaxial.

  31. Ball and Socket Multiaxial ball & socket joints allow the greatest range of motion.

  32. Structural Details of Some Synovial Joints

  33. The Shoulder

  34. Capsule of the shoulder

  35. The Hip

  36. Extracapsular ligaments of the hip a.

  37. Extracapsular ligaments of the hip b.

  38. The Elbow

  39. The Elbow b.

  40. The Elbow reverse view

  41. The Knee

  42. Anterior view of the knee

  43. Extracapsular ligaments of the knee

  44. Common knee injury

  45. ACL replacement http://www.maitrise-orthop.com/corpusmaitri/orthopaedic/95/plaweski/plaweskius.shtml

  46. No Mas

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