<prompt> Tibial nerve injurypalsy causes:Dorsiflexion of foot at ankle jointPlanter flexion of the foot at ankle jointLoss of sensation of dorsum of footParalysis of muscles of anterior compament of leg  <response>: A i.e. Dorsiflexion of foot at ankle joint Tibial nerve the larger component of sciatic nerve supplies all muscles of posterior compament of leg gastrocnemius, soleus, plantaris, popliteus, tibialis posterior, FHL FDL planti flexing the ankle foot. Therefore, tibial nerve injury results in loss of planter flexion along with calcaneo-valgus attitude of foot ie dorsiflexion eversion dt unopposed anterior compament muscles.Deep peroneal fibular nerve supplies all anterior leg compament muscles tibialis anterior, EHL, EDL, EDB, PT dorsiflexing the ankle foot. Therefore, deep peroneal nerve injury ri loss of dorsiflexion of ankle along with foot drop ie planter flexed foot dt unopposed posterior compament muscles.Sole is supplied by medial lateral plantar and sural branches of tibial nerveQ anteriorly from medial to lateral and calcaneal branches of tibial nerve0 posteriorly i.e. over heel. So it is not affected in common peroneal nerve injury.Sural nerve descends lateral to calcaneal tendon near the sho saphenous vein, and supplies posterior and lateral skin of distal third of legQ. It then passes along lateral side of foot and little toeQ supplying the overlying skin.Anterolateral aspect of leg, and dorsum of foot including 2 - 4th zveb spacesQ are supplied by superficial peroneal nerve.Whereas deep peroneal fibular nerve supplies 1st web space i.e. adjacent sides of great and second toesQMedial aspect of leg and foot upto ball of big toeQ is supplied by saphenous br. of femoral nerve. Whereas sural nerve supplies lateral border of footQ and postero lateral 1 3rd of leg. 