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Anatomy
Anatomy
Supination
Evidence-grounded — sourced from Fysiqal's fitness knowledge graph· 1 min read
movement-terminologyjoint-motionforearmrotation
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In one line
Rotation of the forearm that turns the palm up, rotating the radius on the ulna.
Detail
Supination is rotation on the axis of bone, specifically applied to the forearm, as in turning the hand up by rotating the radius on the ulna. At the end of the movement the palms should face you. It is a function of the biceps brachii and the brachioradialis. Source attributes the movement terminology to Thompson (1989); the radioulnar joint movement diagram is from Harter (1991).
Key facts
- Supination = forearm rotation turning the palm up (radius rotates on the ulna).
- End position: palms face you.
- Produced by the biceps brachii and brachioradialis.
Connections
- pronation — the opposite forearm rotation.
- biceps-brachii — supinates the forearm.
- brachioradialis — supinates the forearm.
SourceReference manual
p.412p.728
Cited authorities in source: Thompson (1989); Harter (1991).
Educational content only — not medical advice. Always consult a qualified professional for individualized guidance, especially around injury, pregnancy, or medical conditions.
Explore related topics
Atlas Connections
Biceps Brachii
The strongest flexor of the elbow joint (long and short heads); flexes the elbow, supinates the forearm, and weakly flexes the shoulder; a 2-joint muscle (ROM 135°).Brachioradialis
A forearm flexor that flexes the elbow and both supinates and pronates the forearm.PronationClosely related
Rotation of the forearm that turns the palm down, rotating the radius on the ulna.