MI'S. LES OF THE HIND LIMB. 



107 



ligatnentiim cateanei, runs backwards, and is inserted into the whole 

 length of the plantar surface of the astragalus. It extends the foot. 



136. M. plant aris (Figs. 88, 89^;). 



This takes its origin from the ligament urn ealcanei to the inner side 

 and below the last muscle. It passes backwards and is inserted 

 into the dorsal surface of the apOitewrori* plantarix. 



89 



137. 31. flexor digitorum III, IV, 7 longus (Eeker), Figs. 88, 



Duges, peroneo-sous-phalangettien (flexor dig. lonyu*). 



This muscle also arises 

 from the ligamentum eal- 

 canei to the outer side of 

 the HI. plantar i*. It runs 

 backwards over the apo- 

 neuro*i# plant aris, and at 

 the free margin of this 

 passes somewhat sud- 

 denly into a strong ten- 

 don, which traverses an 

 aponeurotic canal, formed 

 by fibres of the aponeu- 

 rosis passing above and 

 below the tendon, from 



Muscles of the plantar surface of foot 

 of Rana esculenta, twice natural 

 size. 



A. p. Aponeurosis plantaris, divided. 



oi.j. M. abductor dig. V. 



arf.j. M. adductor dig. V. 



ad.l.i. M. adductor longus dig. I. 



./. M. extensor tarsi. 



F.$. M. flexor brevis dig. V. 



J-'J. M. flexor digitorum III, IV", V" 



longus. 

 F.f . M. flexordigitomm I, II longus 



ft ' 



'.3'. -Musculi lumbricales. 

 1.4'. 

 1-4" 

 t.S. ' 



I.e. Ligamenturu caluanei . 

 p M. plantaris. 

 t.A. Tendo Achillis.. 

 '.-I'. Thickening in tendo Achillis. 

 >!'. M. transrersus plantae poste- 

 rior. 

 0''. M. trans versus plantae anterior. 



Fig. 89. 



I.e. 



ttA> 



F.l 



