medial plantar artery medial plantar artery the medial plantar artery (internal plantar artery), much smaller than the lateral plantar artery, passes forward along the medial side of the foot. medial plantar arterythe plantar arteries. deep view. (medial plantar artery visible at upper left.)the plantar arteries. superficial view. (medial plantar artery visible at center left.)detailssourceposterior tibial arterysuppliessoleidentifierslatinarteria plantaris medialista98a12.2.16.061ta24734fma43925anatomical terminology it is at first situated above the abductor hallucis, and then between it and the flexor digitorum brevis, both of which it supplies. at the base of the first metatarsal bone, where it is much diminished in size, it passes along the medial border of the first toe, anastomosing with the first dorsal metatarsal artery. small superficial digital branches accompany the digital branches of the medial plantar nerve and join the plantar metatarsal arteries of the first three spaces. branches a superficial branch which supplies a plantar digital artery to the medial side of the 1st toe, and a deep branch which assists in supplying blood to the plantar metatarsal arteries. additional images coronal section through right talocrural and talocalcaneal joints.