The Skeletal System Pt.3

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  • The Skeletal System Pt.3
    • Joint Movement.
      • Joints are any points where 2 / more bones meet.
      • Major joints in the body and their articulating bones.
        • Hip - Pelvis & Femur.
        • Shoulder - Humerus & Scapula.
        • Knee - Femur & Tibia.
        • Ankle - Tibia, Fibula & Talus ( a tarsal).
        • Elbow - Humerus, Radius & Ulna.
      • Flexion - Closing a joint e.g. wrist movement during a basketball throw.
      • Extension - Opening a joint e.g. Kicking a ball.
      • Adduction - Moving towards and imaginary centre line e.g. swinging a golf club.
      • Abduction - Moving away from and imaginary centre line e.g. taking back a tennis racket before swinging it.
      • Rotation - Clockwise or anticlockwise movement e.g. leg movement during a turnout in ballet.
      • circumduction  - Movement of a limb, hand/foot in a circular motion e.g. to bowl a cricket ball.
      • Plantar-Flexion - Extension at the ankle e.g. pointing toes in gymnastics.
      • Dorsi-flexion - Flexion at the ankle e.g. lifting toes during gymnastics.
    • Joint Types
      • Ball & Socket - Hip & Shoulder. Flexion and Extension, Adduction and Abduction, Rotation & circumduction
      • Hinge - Knee, Ankle & Elbow. Flexion & Extension.
      • Condyloid - Wrist. Flexion & Extension, Adduction & Abduction, circumduction
      • Pivot - Neck    ( Atlas & Axis). Rotation

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