Cutaneous Nerves of the Back Legs

Distribution of cutaneous nerves on the back of the lower legs. On the one side the distribution of the several nerves is represented the letters indicating their nomenclature. Labels: L.1, 2, 3, S.1, 2, 3, posterior primary division of lumbar and sacral nerves: I.H, iliohypgastric; T.12, lateral and posterior branches of the last thoracic nerve; A.Co1, posterior sacrococcygeal nerve; A.Co2, anterior sacro-coccygeal nerve; PERF., perforating cutaneous nerve; S.Sc, small sciatic; E.C, external cutaneous; OBT, obturator; I.C, internal cutaneous; E.P.S, sural branches of peroneal; I.S., internal saphenous; E.S, external saphenous; M.C, musculocutaneous; CALC, calcanean branch of posterior tibial; I.P, internal plantar; E.P. external plantar nerve. On the other side a schematic representation is given of the areas supplied by the above nerves, the letters indicating the spinal origin of the branches of distribution to each area.

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