Wrist from palmar perspective. Bones: C, capitate; H, hamate; L, lunate; P, pisiform; R, radius; S, scaphoid; Td, trapezoid; Tm, trapezium; Tq, triquetrum; U, ulna. Arteries: AIA, anterior interosseous artery; RA, radial artery. Ligaments: CH, capitohamate; LRL, long radiolunate; PRU, palmar radioulnar ligament; RSC, radioscaphocapitate; SC, scaphocapitate; SRL, short radiolunate; STT, scaphotrapeziotrapezoid; TZC, trapezocapitate; TC, triquetrocapitate; TH, triquetrohamate; TT, trapeziotrapezoid; UC, ulnocapitate; UL, ulnolunate; UT, ulnotriquetral.