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Joints

Joints. Chapter 8. What is a joint?. Defined as the site where two or more bones meet. Also called an “articulation” Joints allow our skeleton mobility and they hold our skeleton together. Classification of Joints. Functional classification Synarthroses Amphiarthroses Diarthroses.

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Joints

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  1. Joints Chapter 8

  2. What is a joint? Defined as the site where two or more bones meet. Also called an “articulation” Joints allow our skeleton mobility and they hold our skeleton together

  3. ClassificationofJoints • Functionalclassification • Synarthroses • Amphiarthroses • Diarthroses

  4. ClassificationofJoints • Structuralclassification • Fibrous joints • Cartilaginous joints • Synovial joints

  5. FIBROUSJOINTS • General Characteristics • Bones are joined by fibrous tissue • No joint cavity is present • Most are immovable but some are slightly moveable

  6. TYPES OF FIBROUSJOINTS • Sutures (synostoses) • Syndesmoses • Gomphoses

  7. FIBROUSJOINTS • Sutures

  8. FIBROUSJOINTS • Syndesmoses

  9. FIBROUSJOINTS • Gomphoses

  10. CARTILAGINOUS JOINTS • General Characteristics • Articulating surfaces are united by cartilage • No joint cavity • Can be synarthrotic or amphiarthrotic

  11. TYPES OFCARTILAGINOUS JOINTS • Synchondroses • Symphyses

  12. CARTILAGINOUS JOINTS

  13. Review Question What is the scientific term for a joint that is immovable? a. Diarthrotic b. Amphiarthrotic c. Synarthrotic

  14. Review Question Which of the following is an example of a fibrous joint? a. Synchondroses b. Syndesmoses c. Symphyses

  15. Review Question Which of the following best describes a suture? a. Synchondroses b. Syndesmoses c. Symphyses d. Synostoses e. Gomphoses

  16. SYNOVIAL JOINTS • General Characteristics • Articular bones are separated by a fluid-filled cavity • Joints of limbs • Diarthrotic

  17. SYNOVIAL JOINTS

  18. SYNOVIAL JOINTS

  19. Movements of synovial joints • Axis of motion • Nonaxial • Uniaxial • Biaxial • Multiaxial

  20. GLIDING MOVEMENTS

  21. Angular Movements

  22. Angular Movements

  23. Angular Movements

  24. Special Movements

  25. Special Movements

  26. Special Movements

  27. Review Question Which of the following best describes someone who is “pigeon-toed”? a. Medial rotation b. Lateral rotation c. Circumduction d. Inversion e. Eversion

  28. Review Question Which of the following muscle actions best describes “windmill” exercises? a. Medial rotation b. Lateral rotation c. Circumduction d. Inversion e. Eversion

  29. Types of Synovial Joints

  30. Types of Synovial Joints

  31. Types of Synovial Joints

  32. Types of Synovial Joints

  33. Types of Synovial Joints

  34. Types of Synovial Joints

  35. Review Question Which of the following types of synovial joint is found within the joint between the 1st metacarpal and 1st phalange? a. Saddle b. Pivot c. Hinge d. Ball and socket e. Condyloid

  36. Review Question Which of the following types of synovial joint is found within the hip joint? a. Saddle b. Pivot c. Hinge d. Ball and socket e. Condyloid

  37. Joint Injuries • Sprains • Dislocations • Bursitis • Tendonitis • Arthritis • Synovitis

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