Figure 7.28a-b Trapezoid Trapezium Scaphoid Phalanges Carpals Radius Proximal Middle Distal Triquetrum Lunate Capitate Hamate Pisiform Metacarpals Carpals (b) Posterior view of left hand Ulna Base Shaft Head Trapezoid Trapezium Scaphoid Carpals (a) Anterior view of left hand Radius Sesamoid bones