Different Types (Shapes) of Joint

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  • Created by: Gabby
  • Created on: 06-05-13 17:48
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  • Different Types (Shapes) of joint
    • BALL AND SOCKET JOINT
      • e.g. Hips and Shoulders
      • Movement around three axes:
        • Extension and Flexion
        • Inward rotation and outward rotation
        • Adduction/ Abduction
      • A hollow cup into which the rounded end of a bone can fit.
        • Wide range of movement:
          • In all directions.
        • Joint stability depends on:
          • The size of the cup 'socket'.
      • Synovial Joint
    • HINGE JOINT
      • e.g. knee and ankle
        • Ankle
        • interphalangeal
        • Metacarpal-phalangeal
      • Movement in one plane only:
        • Extension (stretching)
          • Flexion (Bending)
      • The convex surface of one bone fits against the concave surface of the other.
        • Clasping arrangement.
      • Synovial Joint
    • PIVOT JOINT
      • Movement round one axis only:
        • Inward rotation
          • Pronation
        • Outward rotation
          • Supination
      • Bones rotate around each other.
        • Sometimes called:
          • A swivel joint
        • The radius and the ulna.
      • e.g. the lower two arm bones
        • The radius and the ulna.
      • Synovial Joint
    • The body is designed:
      • Each joint moves in its own specifically designed way.
        • Minimal muscular effort.
    • Synovial Joint:
      • More mobile than the other two:
        • Fibrous
        • Cartilaginous
      • Synovial Capsule
        • Encloses the whole joint
        • Made up of very strong:
          • Fibrous tissue
            • 'Cushion' for the joint.
        • Lined with a layer of tissue:
          • SYNOVIAL MEMBRANE
            • Produces Lubrication for the joint.
              • SYNOVIAL FLUID
                • Secreted when the joint is required to perform strenuous activity.
                  • e.g. during exercise- DANCING

Comments

Christina

LOVE IT! Very detailed, thanks so much!

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