THE LEG 



287 



inserted into the tubercle of the navicular bone, and also by 

 a number of slips into certain of the tarsal and metatarsal 

 bones. These will be dissected later on. The tibialis 

 posterior is supplied by the tibial nerve. 



Arteria Peronea. This vessel may now be traced distally 

 as it runs along the fibula under cover of the flexor hallucis 

 longus. It is accompanied by two vena comites. About an 

 inch or an inch and a half proximal to the ankle-joint it 

 gives off its perforating branch, and then, continuing distally, 



Tibialis posterior 



Flexor digitoruni longus-. 

 Posterior tibial artery / 

 and tibial nerve \ 

 Flexor hallucis longus, 

 Tibialis posterior 

 Medial plantar nerves 

 Flexor digitoruni longus\ 



Lateral plantar artery/ 



and nerve 



Medial plantar artery 

 Abductor hallucisx.^ 



.Nerve to the / ' Medial calcanean 

 quadratus p antae , vessels d 



Abductor d.g.t, qumti Quadratus plantE 



FIG. 105. Dissection of the medial side of the Ankle, showing the relations 

 of the lig. laciniatum (O.T. internal annular lig. ). 



it passes posterior to the tibio-fibular syndesmosis and turns 

 forwards distal to the lateral malleolus, to end on the lateral 

 aspect of the calcaneus by breaking up into a number of 

 lateral calcaneal branches. 



In addition to these it gives off 



1. Muscular branches. 



2. A. nutritia fibuloe. 



3. Ramus communicans. 



The muscular branches supply the muscles around it. The 

 nutrient artery enters the nutrient foramen on the posterior 

 surface of the fibula. The communicating artery arises a short 



