Types of synovial joint

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  • Types of synovial joints
    • Ball and socket
      • Ball shaped head articulating with a cup like socket of an adjacent bone
      • Movement can occur in 3 planes
      • Examples: Hip and shoulder
    • Hinge
      • Cyndrical protusion of 1 bone articulates with a trough-shaped depression of an adjacent bone
      • Movement restricted to 1 plane: Flexion and extension only
      • Strong bones. Difficult to damage or dislocate
      • Examples: Elbow, knee, ankle
    • Pivot
      • Rounded/pointed structure of 1 bone articulates with ring shaped structure of an adjacent bone
      • Movement restricted to 1 plane: rotation of longitude axis only
      • One of the strongest, less likely to damage
      • Examples: Radio-ular, spine(atlas/axis)
    • Condyloid
      • Movement in 2 planes
      • Similar to ball and socket, but with much flatter articulating surfaces, forming a shallower joint
      • Not very strong, easy to dislocate as there isn't many muscles holding in the bone
      • Examples: wrist, base of thumb
    • Gliding
      • Articulating surfaces almost flat and of a similar size
      • Movement occurs in 3 planes, but severely limited
      • Examples: Spine, ankle area
      • Difficult to dislocate
    • Saddle
      • Movement in 2 planes
      • Stronger than Condyloid, not as strong as others
      • Examples: Thumb
  • Condyloid
    • Movement in 2 planes
    • Similar to ball and socket, but with much flatter articulating surfaces, forming a shallower joint
    • Not very strong, easy to dislocate as there isn't many muscles holding in the bone
    • Examples: wrist, base of thumb

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