SUPERFICIAL DISSECTIONS 27 



artery and the posterior root of the internal saphena vein. It runs 

 obliquely downwards and forwards across the seat of spavin to terminate 

 in the skin of the metatarsus. The nerve is displayed in the Plate, and 

 is important in the treatment of spavin by neurectomy. 



The Internal Plantar Nerve (32) is visible where it leaves the tarsal 

 sheath. Its course down the limb on the edge of the perforans tendon, 

 and the distribution of its terminal divisions, coincide with the descrip- 

 tion already given of the external plantar nerve. About midway down 

 the metatarsal region it gives off the communicating branch which joins 

 the external plantar nerve just above the level of the button of the spHnt 

 bone (36). 



