plantar venous arch plantar venous arch the four plantar metatarsal veins run backward in the metatarsal spaces, communicate, by means of perforating veins, with the veins on the dorsum of the foot, and unite to form the plantar venous arch (or deep plantar venous arch) which lies alongside the plantar arterial arch. plantar venous archthe plantar arteries. deep view. (veins not shown, but path of veins is similar to that of arteries.)detailsarteryplantar archidentifierslatinarcus venosus plantarista98a12.3.11.016ta25082fma44489anatomical terminology from the deep plantar venous arch the medial and lateral plantar veins run backward close to the corresponding arteries and, after communicating with the great and small saphenous veins, unite behind the medial malleolus to form the posterior tibial veins.