S42 Chongyang ( Yuan Primary Point , E42 )

Location Distal to S 41 , at the highest point of the dorsum of the foot , in the depression between the second and third metatarsal bones and the cuneiform bone

Indications Pain of the upper teeth , redness and swelling of the dorsum of the foot , facial paralysis , Muscular atrophy and motor impairment of the foot .

Method Avoid puncturing the artery . Puncture perpendicularly - 0 . 3 - 0 . 5 inch . Moxibustion is applicable

Vasculature The dorsal artery and vein of foot , the dorsal venous network of foot .

Innervation Superficially , the medial dorsal cutaneous nerve of foot derived from the superficial peroneal nerve ; deeper , the deep peroneal nerve .