The carpus or carpals, consist of eight individual bones which compose each wrist. The small bones fit together in an exacting way to allow a wide range of flexibility in the wrist, while maintaining structural integrity. The eight bones of each wrist include the hamate, navicular, trapezium, pisiform, trapezoid, lunate, triquetrum, and capitate bones, which articulate with the metacarpals, the radius, and the ulna. Research Carpus