Radial Groove Anatomy in 3D | Rolandic Anatomy

A spiral channel on the humerus. The "Radial Nerve" lies directly in this groove; a "Humeral Shaft Fracture" here almost always results in "Wrist Drop" because the nerve is crushed against the bone.

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Related structures

Humerus Anatomical Neck of Humerus Anconeus Muscle (Humerus Origin) Anterior Border of Humerus Anterolateral Surface of Humerus Anteromedial Surface of Humerus Body of Humerus Brachialis Muscle (Humerus Origin)