Muscles of the Leij 



355 



400. Muscles of the sole of the right foot (s-^d layer). 



(The mm. tiexores digitorum, abductor halhicis and abchictrn- digiti V have been removed.) 



M. flexor halhicis 

 brevis (see also Figs. 

 398, 399 and 404). 

 F r ni : oblong. Po- 

 sition: in the sole of 

 the foot, partly super- 

 ficial, behind and me- 

 dianward covered by 

 the m. abductor halhi- 

 cis, lateralward pai'tly 

 fused with the caput 

 obliquum m. adductoris 

 hallucis. Origin:plan- 

 tar surface of the ossa 

 cuneiformia I III and 

 hg. calcaneocuboideum 

 plantare. Insertion: 

 it forms two diverging 

 rounded bellies which, 

 becoming tendinous, run 

 to the two sesamoid 

 bones and to the base 

 of the first phalanx of 



Temlines 



ni. tioxoris 



digitorum 



longi 



the great toe ; 



Tendines 

 111. flexoris 

 d^igitorum 

 hrevis 

 Ligamentum 

 capitulorum 

 transversuiu 

 M. adductor 



hallucis 

 (caput trans- 

 versuni) 

 M. abductor 

 digiti V 

 (cut off) 

 Mm. inter- 

 ossei 

 M. flexor 

 digiti V 

 brevis 



between the two bellies 

 lies the tendon of the 

 m. flexor hallucis longus. 

 Action: it draws the 

 great toe plantarward. M 

 Innervation: medial 

 belly : n. plantaris nie- 

 dialis ; lateral belly: n. 

 plantaris lateralis. 



M. adductor hfil- 

 lucis (see also Fig. 404). 

 Form: two heads. Po- 

 sition: in the sole of 

 the foot, bounded dor- 

 sal ward by the mm. in- 

 terossei, plantarward by 

 the mm. flexores digi- 

 torum. Origin: caput M. 

 obliqmim : bases of the 

 ossa metatarsalia II to 

 IV, OS cuneilbrme III, 

 OS cuboideiim and lig. 

 plantare longum ; the 

 fibers converge to a 

 rounded belly, which is 

 fused medianward with 

 the m. flexor hallucis 

 brevis ; caput trans- 

 vcrsum: capsular liga- 

 ments of the articula- 

 tiones metatarsophalan- 

 geae II V and ligg. capitulnrum transversa 

 the fibers converge medianward. Inser 

 tion: the two heads become inserted into 

 the lateral sesamoid bone and the l)ase of the'' first phalanx 

 draws the great toe plantarward and lateralward. Inner vat 



. opponens - 

 digiti V 



Tuberositas 

 OSS. meta- ^ 

 tarsalis V 



Tendo 

 m. peronaei 



lougi 

 M. abductor 

 digiti V 

 (cut off) 

 Ligawentum 

 plantare lougum 



quadratus plantav 

 (cut off) , 



Tendines 



in. flexoris 



digitorum longi 



(cut off) 



Tendo 



m. flexoris 



ballueis longi 



(cut off) 



Cbiasnia 

 tendinuiii 



Processes of th( 



aponeurosis 

 jilantaris to tbc 

 ligg. vaginalia 



M. abductor 

 hallucis (cut off 



M. 

 adductor hallucis 

 (caput obliquum) 



jr. flexor 'hallucis 

 brevis^ 



Process to the m. flexo 

 digitorum longus 



Tendo m. flexoiis 

 hallucis longi 



Tendo iii. flexoris 

 digitorum longi 



Origins of the 

 m. abductor hallucis 



Deep layer of the ligamentun 

 laeinialum 



-Tuber calcanei 



of the great toe. Action: it 

 ion: n. plantaris lateralis. 



