palmar intercarpal ligaments palmar intercarpal ligaments the palmar intercarpal ligaments are fibrous bands that extend transversely across the palmar surfaces of the carpal bones, connecting adjacent carpals. these are the ligaments that define the structure of the ligamentous palmar arch. palmar intercarpal ligamentsligaments of wrist. anterior view.detailsfromcarpaltocarpalidentifierslatinligamenta intercarpalia palmariata98a03.5.11.105ta21808fma42302anatomical terminology