@anatomystandard: A look at the radius and ulna demonstrating the exact articular mechanics of forearm rotation. During pronation and supination, the ulna remains relatively stationary while the radial head pivots against the capitulum at the proximal radioulnar joint. Distally, the radius sweeps across the ulna, driven by the proximal and distal radioulnar joints working as a single mechanical unit #anatomystandard #forearmbiomechanics #radioulnarjoint #pronation #supination

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Tuesday 20 October 2026 13:07:35 GMT