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The Musculoskeletal System
Joints and Skeletal Movement
Biology Textbooks Boundless Biology The Musculoskeletal System Joints and Skeletal Movement
Biology Textbooks Boundless Biology The Musculoskeletal System
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Biology
Concept Version 7
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Movement at Synovial Joints

Special movements

Special movements

(g) Supination of the forearm turns the palm upward in which the radius and ulna are parallel, while forearm pronation turns the palm downward in which the radius crosses over the ulna to form an "X." (h) Dorsiflexion of the foot at the ankle joint moves the top of the foot toward the leg, while plantar flexion lifts the heel and points the toes. (i) Eversion of the foot moves the bottom (sole) of the foot away from the midline of the body, while foot inversion faces the sole toward the midline. (j) Protraction of the mandible pushes the chin forward, while retraction pulls the chin back. (k) Depression of the mandible opens the mouth, while elevation closes it. (l) Opposition of the thumb brings the tip of the thumb into contact with the tip of the fingers of the same hand.

Source

    Boundless vets and curates high-quality, openly licensed content from around the Internet. This particular resource used the following sources:

    "OpenStax College, Types of Body Movements. December 1, 2013."
    http://cnx.org/content/m46398/latest/ OpenStax CNX CC BY 3.0.

Related Terms

  • supination
  • abduction
  • adduction
  • pronation
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