proper palmar digital nerves of ulnar nerve proper palmar digital nerves of ulnar nerve the proper palmar digital nerves of the ulnar nerve are nerves of the hand. proper palmar digital nerves of ulnar nervesuperficial palmar nerves.diagram of segmental distribution of the cutaneous nerves of the right upper extremity.detailsfromcommon palmar digital nerves of ulnar nerveidentifierslatinnervi digitales palmares proprii nervi ulnarista98a14.2.03.047ta26456anatomical terms of neuroanatomy the superficial branch of the ulnar nerve divides into a proper palmar digital nerve, which supplies the medial side of the fifth digit and a common palmar digital nerve which divides into two proper palmar digital nerves that supply the adjacent sides of the fourth and fifth digits. additional images cutaneous nerves of right upper extremity.