108 THE MUSCLES. 



the cartilag-inous enlarg-ement in the tendon to the median border 

 of the aponeurosis. The tendon forms three slips for the fifth^ 

 fourth^ and third toes : these are slightly attached to the aponeurosis, 

 but reach beyond its free border to be inserted into the terminal 

 phalang-es of the toes mentioned, and are held down by fibrous 

 bands. (The small 711. Inmbricales arising from these tendons are de- 

 scribed below.) 



138. M. flexor digitorum I, II lonr/us (Ecker), (Figs. 88, 89 F J'.). 

 The tendons, by means of which the terminal phalanges of the 



first and second toes are flexed, arise directly from the posterior 

 border of the aponeurosis. 



139, 140. 3IM. transversi 2)/anfae (Ecker), (Fig. 89 t.^h, t.p .). 

 The movements of the aponeurosis and through it the move- 

 ments of the tendons attached to it are influenced not only by 

 the m. gastrocnemius and plantaris, but also by two other muscles, 

 which together have been described as \\x'& flexor dig. longiis internus 

 (Klein), or as the tarso-sous-phalangettien (Duges, 221). 



a. M. transversus plantae posterior {t.p.). 



This takes its origin from the plantar cartilage, widens as it 

 courses backwards and inwards to be inserted into the dorsal 

 surface of the aponeurosis plantaris-, from this the tendons for 

 the first and second toes {flexor dig. longus I and //) arise, thus there 

 is no direct connection between the muscular fibres of the two 

 muscles. 



b. M. transversus jdantae anterior {t.p'.). 



This muscle is covered by the last ; broader anteriorly, it arises 

 from the calcaneum, and is inserted to the inner side of the last 

 muscle into the dorsal surface of the aponeurosis. This muscle, 

 like that just described, is not continued directly into the tendon 

 of the flexor of the toes, they cannot therefore be regarded as 

 flexors of the toes. 



141 to 149. Musculi lumhricales (Fig. 89 l.i-^. 

 (A.) From the posterior border of the aponeurosis plantaris arise :-- 

 (1) M. lumbricalis digiti I {Li). 



Dugès, teudini-sous-phalangieii de pouce, n. 185. 



This is inserted into the anterior extremity of the proximal 

 phalanx. 



