THE MUSCLES 117 



IV, V metatarsien; Flechisseur de la III, et IV phalangine; Flechisseur 

 de la IV phalanginette ..... Perrin (1892). 



Flexores digitorum sublimes breves .... Osawa (1902). 

 Together with the M. flex. prim. comm. = 



Flexor digitorum sublimis .... Humphry (1872). 



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



Femoro-fibulae-digiti I-V .... Hoffmann (1873-8). 



This series of small muscles correspond very closely with the similarly 

 named muscles of the hand. They arise from the dorsal side of the 

 fascia plantaris and from its digital tendons. The details of the 

 several digits vary somewhat as follows : 



Digit I possesses one small muscle slip inserted along the tibial 

 border and distal end of the metatarsal. 



Digit II has three small fascicles, two lateral inserted on either 

 side of the metatarsal, and a median inserted on the base of the 

 proximal phalanx. 



Digit III has five muscle slips recognizable as belonging to 

 this series. These comprise two lateral pairs, one pair inserted on 

 each side of the metatarsal, and the other pair, somewhat smaller, 

 inserted on the base of the proximal phalanx. The remaining 

 slip is a median one and is inserted on the base of the middle 

 phalanx, but although it is a median muscle its insertion is double 

 so as to allow for the passage of the insertion tendon of the M. inter- 

 phalangeus. 



Digit IV IS exactly similar to digit III. 



Digit V has a very small median slip attached to the base of the 

 proximal phalanx and a pair of lateral muscles inserted on the sides 

 of the metatarsal. 



Innervation-. All the slips are innervated by twigs from the 

 plantar nerve loop. 



Function : To flex the digits. 



M. caput longum musculorum contrahentium (m.c.l.c.) Ribbing (1909). 

 Flechisseur commun profond des phalanges . . Perrin (1892}. 



Fibulo-plantaris ....... Eisler (1895). 



Flexor digitorum profundus ..... Osawa (1902). 



Fibulo-tarsalis ...... McMurrich (1904). 



Together with the following muscle = 



Flexor digitorum profundus .... Humphry (1872). 



Fibulae-metatarsi et digiti I-V . . . Hoffmann (1873-8}. 



This muscle resembles the muscle of the same name in the anterior 

 limb and is narrow and ribbon-like. It arises from the mesial side of 



