THE MUSCLES 119 



and probably 



Femoro-fibulae-metatarsi I, II, and III . . Hoffmann (1873-8). 



Together with M. flex. prim. comm. and MM. flexores accessorii = 



Flexor digitorum sublimis ..... Osawa (1902). 



This Is the deepest of the three pronating muscles of the leg. It 

 arises from the mesial side of the fibula, deep to the M. flex. ace. med. 

 Its fibres converge towards their insertion on the lateral face of 

 the distal end of the tibia, the tibiale, the cart, pre-hallucis, and 

 the base of the first metatarsal. The muscle is thus triangular in 

 shape. 



Innervation : From N. interosseus. 



Function : It is the chief pronator of the foot. 



Fibulae-tibialis 

 Interosseux de la jambe . 

 Fibulotibialis s. interosseus 

 Interosseus . 



M. interosseus cruris. Ribbing (1909). 



Pronator tibiae . . . Humphry (1872); Osawa (1902) 



. Hoffmann (1873-8) 



Perrin (1892) 



Eisler(i895) 



. McMurrich (1904) 



Like the muscle in the fore-arm this is a thin sheet of muscle joining 

 the mesial sides of the two bones in the distal joint of the limb — in 

 this case the fibula and tibia. It may be regarded as arising from the 

 proximal portion of the fibula and inserted on the distal part of 

 the tibia. It lies deep to the M. pronator profundus as seen from the 

 flexor side. 



Innervation : From N. interosseus. 



Function : It forms an elastic ligament between the two bones of 

 the leg. 



MM. flexores breves profundi (m.f.b.p.). Eisler (1895); Ribbing 

 (1909). 



Tarso-metatarsales . . . Humphry (1872); Osawa (1902) 



Tarso-metatarsi I-V ..... Hoffmann (1873-8) 

 Flechisseurs primitifs des metatarsiens . . . Perrin (1892) 



Flexor brevis profundus .... McMurrich (1904) 



These form yet another series of short flexor muscles to the digits 

 They lie immediately deep to the MM. contrahentes digitorum, 

 and are short, bulky muscles arising from the distal faces of the 

 basalia. Each muscle, except that of the first digit, has three inser- 

 tions, namely, on either side of the corresponding metatarsal and on 

 its ventral face. The lateral insertions extend along practically the 

 whole length of the bone, but the ventral portion does not extend 



