FLEXOR LONG US HALLUCIS 



375 



the_ sustentaculum tali, where it lies external to the tendon of the flexor longus 

 difritorum. From this ]ioint it |)asses forwards in tlie second layer of the muscles 

 of the sole, l^'ing above and crossing the tendon of the flexor longus digitorum, to 



Fig. 292.— The Deep Musci.ks of the Back of the Leg. 



Plantaris 

 Outer head of gastrocnemius 



Peroueua longua 



Flexor longus hailucis 



Peroneus brevia 



Tibialis posticus 



Tendo Aohillia 



which it gives a small slip. It then crosses 1>eneath the inner head of the flexor 

 hrevis hailucis, lies in the groove between tlie sesamoid bones of that muscle, and 

 is finally inserted into the l)ase of the last phalanx. 



