MUSCLES ON THE LEG. 387 



Inserted, into the root of the metatarsal bone that sustains the 

 httle toe. 



Use. To assist in bending the foot. 



Muscles on the outside of the Leg. 



1. Peroneus Longus. 



Arises, tendinous and fleshy, from the forepart of the head of 

 the peroneus, or fibula, the fibres running straight down ; also 

 from the upper and external part of the fibula, where it begins 

 to rise into a round edge ; as, also, from the hollow between that 

 and its anterior edge, as far down as to reach within a hand's 

 breadth of the ankle, by a number of fleshy fibres, which run 

 outwards towards a tendon, that subsequently becomes long and 

 round, and passes through a channel at the outer ankle, in the 

 back part of the inferior extremity of the fibula ; then being 

 reflected to the sinuosity of the os calcis, it runs along a 

 groove in the os cuboides, above the muscles in the sole of the 

 foot. 



Inserted, tendinous, into the outside of the root of the meta- 

 tarsal bone that sustains the great toe, and by some tendinous 

 fibres into the os cuneiforme internum. 



Use. To turn the foot outwards, and to extend it a little. 



2. Peroneus Brevis, 



Arises, by an acute fleshy beginning, from above the middle 

 of the ex.ternal part of the fibula ; from the outer side of the 

 anterior spine of this bone ; as also from its round edge externally, 

 the fibres running obliquely outwards towards a tendon on its 

 external side : it sends off a round tendon which passes through 

 the groove at the outer ankle, being there included under the 

 same ligament with that of the preceding muscle ; and a little 

 farther, it runs through a particular one of its own. 



Inserted, tendinous, into the root and external part of the 

 metatarsal bone that sustains the little toe. 



Use. To assist the former in pulling the foot outwards, and 

 extending it a Httle. 



