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SYNOVIAL JOINT

SYNOVIAL JOINT. Dr Iram Tassaduq. SYNOVIAL JOINT. Joint in which two bones are separated by a space called a joint cavity Most are freely movable. FEATURES OF SYNOVIAL JOINT. Articular capsule Synovial membrane and fluid Articular cartilage Articular discs and menisci Tendon

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SYNOVIAL JOINT

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  1. SYNOVIAL JOINT Dr Iram Tassaduq

  2. SYNOVIAL JOINT • Joint in which two bones are separated by a space called a joint cavity • Most are freely movable

  3. FEATURES OF SYNOVIAL JOINT • Articular capsule • Synovial membrane and fluid • Articular cartilage • Articular discs and menisci • Tendon • Ligament • Fatty pad • Bursae

  4. CAPSULE • continuous with the periosteum of articulating bones and unites the articulating bones; • consists of two layers – • the outer fibrous membrane that may contain ligaments • the inner synovial membrane • highly innervated, but avascular

  5. ARTICULAR CARTILAGE Articular cartilage covers the ends of bones. It has a smooth, slippery surface, which allows the bones to slide over each other without rubbing.

  6. ARTICULAR CARTILAGE

  7. SYNOVIAL MEMBRANE • It is the partition found between capsule and the joint cavity.

  8. SYNOVIAL FLUID • Lubricating fluid in joint cavity to reduce friction

  9. ARTICULAR DISC thin, oval plate, placed between the condyle of the mandible and mandibularfossa

  10. LIGAMENTS Fibrous bands or sheets of connective tissue linking two or more bones or cartilages together. One or more ligaments provide stability to a joint during rest and movement.

  11. TENDON • tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.

  12. BURSAE the fluid sacs and synovial pockets that surround and sometimes communicate with the joint cavity.

  13. TYPES OF SYNOVIAL JOINTS • Plane joint • Hinge joint • Pivot joint • Condyloid joint • Ellipsoid joint • Saddle joint • Ball and socket joint

  14. PLANE JOINT •   a synovial joint in which the opposed surfaces are flat or only slightly curved.

  15. HINGE JOINT • Resemble door hinge • Flexion and extension possible

  16. PIVOT JOINT • Central bony pivot surrounded by bony ligamentous ring • Rotation is only possible movement

  17. CONDYLOID JOINT • Oval convex surfaces on one bone fits into a concave shaped depressions on the next

  18. ELLIPSOID JOINT • Elliptical convex surface fits into elliptical concave surface • Flexion, extension, abduction and adduction occur • Rotation is not possible

  19. SADDLE JOINTS • Articular surfaces resemble a saddle on a horse back • Flexion, extension, abduction, adduction and rotation are permitted

  20. BALL AND SOCKET JOINT • Most mobile joints of the body • All movements possible

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