Originally Posted by toly
Definition – Forearm pronation is counterclockwise forearm rotation.
Is the definition below an acceptable one?
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Supination is a position of either the forearm or foot. When the arms are unbent and at the sides, the forearm is in supination when the palm faces to the front (anteriorly), or faces up. Supination in the foot occurs when a person appears "bow-legged" with their weight supported primarily on the lateral side of their feet (5th Metatarsal).
The hand is supine in the anatomical position (i.e., palms facing up during autopsy). This action is performed by the Biceps brachii and the Supinator muscle.
Supination is the opposite of pronation.