Trapezium Bone, Tubercle Anatomy in 3D

A bump in the palm. This is where the "Transverse Carpal Ligament" (the roof of the Carpal Tunnel) attaches; a surgeon will cut near this tubercle to perform a "Carpal Tunnel Release."

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Related structures

Trapezium Bone Deep Head of Flexor Pollicis Brevis (Trapezium Bone Origin) Tubercle of Rib Tubercle of Scaphoid Bone Adductor Tubercle Anterior Tubercle of Atlas Anterior Tubercle of Transverse Process Articular Facet Tubercle of Rib