medial dorsal cutaneous nerve medial dorsal cutaneous nerve the medial dorsal cutaneous nerve (internal dorsal cutaneous branch) passes in front of the ankle-joint, and divides into two dorsal digital branches, one of which supplies the medial side of the great toe, the other, the adjacent side of the second and third toes. medial dorsal cutaneous nervenerves of the dorsum of the foot. (medial dorsal cutaneous labeled at upper left.)detailsfromsuperficial fibular nerveidentifierslatinnervus cutaneus dorsalis medialista98a14.2.07.052ta26576fma44809anatomical terms of neuroanatomy it also supplies the integument of the medial side of the foot and ankle, and communicates with the saphenous nerve, and with the deep peroneal nerve. additional images cutaneous nerves of the right lower extremity. front and posterior views.