Muscle action terminology and the articulations, or joints that produce them

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Author:
cnative
ID:
254304
Filename:
Muscle action terminology and the articulations, or joints that produce them
Updated:
2013-12-26 18:27:45
Tags:
muscle actions
Folders:
Massage,Therapy
Description:
Muscle actions
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  1. Flexion:
    Bends or decreases the angle of a joint.
  2. Extension:
    Straightens or increases the angle of a joint.
  3. Abduction:
    Movement away from the median plane.
  4. Adduction:
    Movement toward the median plane
  5. Supination:
    Lateral (outward) rotation of the forearm so that the palm is turned up. (sUPinaton: palms up)
  6. Pronation:
    Medial (inward) rotation of the forearm so that the palm is turned down.
  7. Plantar Flexion:
    Extension of the ankle so that the toes are pointing downward, increasing the angle anteriorly.
  8. Dorsiflexion:
    Flexing the ankle dorsally so that the toes are moving toward the shin, as in walking on the heels.
  9. Inversion:
    Elevation of the medial edge of the foot so that the sole is turned inward (or medially).
  10. Eversion:
    Elevation of the lateral edge of the foot so that the sole is turned outward (or laterally).
  11. Circumduction:
    The distal end of a structure moves in a circle and the proximal end is relatively fixed. (Is a combination of several movements including flexion, extension, adduction, and abduction)
  12. Rotation:
    Circular movement when a bone moves around its own central axis.
  13. Elevation:
    Raising or lifting a body part.
  14. Depression:
    Lowering or dropping a body part.
  15. Protraction:
    Movement forward or anteriorly.
  16. Retraction:
    Movement backward or posteriorly.
  17. Opposition:
    Movement in which the tip of the thumb comes into contact with the tip of any other digit on the same hand.
  18. Lateral Deviation:
    Side to side movement, in the transverse plane.

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