The vessels and nerves of the solde of the foot (deep layer). he abductor hallucis has been divided and the greater portion of the flexor digitorum brevis removed together with the plantar aponeurosis. There have also been divided the tendon of the flexor hallucis longus, the quadratus plantae, and the tendons of the flexor digitorum longus, the oblique head of the adductor hallucis, and the medial plantar nerve.