All the following take pa in the formation of the wrist joint, except
The radioulnar joint (wrist joint) is a synol,biaxial and ellipsoid joint formed by the aiculation of Distal end of radius Aicular disc of the triangular fibrocailage Scaphoid,lunate and triquetrum Ref: Gray's Anatomy The Anatomical Basics of Clinical Practice 41 e pg 872.
Scaphoid
Triquetrum
Distal end of radius
Distal end of ulna
Upper limb