Forearm Joint Muscles-Actions


(Plane of Motion)





Description of Motion-The radius and ulna lie parallel to one-another, as in the anatomical position

-The distal radius returns to a position lateral to the ulna

-The lower end of the radius is moved around the ulna

-The proximal end of the radius remains lateral to the ulna, while the lower end crosses to the medial side during pronation

-The hand is carried along with this motion

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