MUSCLES OF THE FOOT. 



T6T 



The abductor minimi digiti pedis (Fig. 254) arises tendi- 

 nous arid fleshy from the outer side of the os calcis, the 

 plantar fascia, and the base of the me- FIG. 254. 



tatarsal bone of the little toe, and is 

 inserted tendinous into the outer part 

 of the base of the first phalanx of the 

 Kttle toe, running along the outer 

 margin of the foot. 



Function. -To draw the little toe 

 from the rest. 



The flexor brevis digitorum pedis 

 (Fig. 254) arises fleshy from the lower 

 surface of the os-calcis, from the plan- 

 tar aponeurosis, and the intermuscular 

 septa. It forms a fleshy mass, situated 

 between the two former muscles, and 

 about the middle of the metatarsal 

 bones it divides into four tendons, 

 each of which has a slit for the pas- 

 sage of the flexor longus, and is inserted into the base 

 of one of the second phalanges of the smaller toes. This 

 muscle is hence a perforatus. 



Function. To flex the second joint of the toes. 



SECOND LAYER. 



The flexor accessorius, or massa carnea Jacobi Sylvii, (Fig. 

 255,) arises fleshy and tendinous from the lower and inner 

 part of the os calcis, and is inserted into the outer side of 

 the tendon of the flexor longus just as it is dividing into 

 its four tendons. Function. To flex the toes. 



The lumbricales pedis (Fig. 255) arise by four tendinous 

 and fleshy slips (consist in fact of four small muscles) from 

 the tendon of the flexor longus digitorum, and are inserted 



Fi. 254 represents the first layer of Muscles on the sole of the Foot, 

 a Abductor pollicis pedis. 6 6 Its tendon, c c Flexor brevis pollicis pedis. 

 d Tendon of flexor longus pollicis. e Aponeurosis plantaris. / Flexor brevis 

 digitorum pedis. g Lumbricales. h Abductor minimi digiti pedis. i Flexor 

 brevis minimi digiti. j Interosseii. 



