The medial dorsal cutaneous nerve (internal dorsal cutaneous branch) is the more medial one of the two terminal branches of the superficial fibular nerve (the other being the intermediate dorsal cutaneous nerve). Through its branches, it provides innervation to parts of the dorsal aspects of the first, second, and third toes.

Anatomy

Origin

The superficial fibular nerve terminates by bifurcating into the medial dorsal cutaneous nerve and the intermediate dorsal cutaneous nerve immediately after emerging from the deep fascia of leg at the distal two-thirds to three-fourths point of the leg.

Branches and distribution

The medial dorsal cutaneous nerves trifurcates at the inferior border of the ankle, giving rise to: It also supplies the integument of the medial side of the foot and ankle.

Anastomoses

It forms anastomoses with the saphenous nerve, and the deep fibular nerve.

Additional images