390 



THE MUSCLES 



iiitliu'iue upon the second and third phalanges, 

 is acted upon chietly by the short muscles in 

 attached to the border of the expansion upon the 

 contracts to its fullest extent, the first phalanges 

 and third plialanges are sonievrhat flexed by the 

 flex the ankle-joint. (3) Slightly to abVluct and 

 Relations. — Superficially, the deep fascia of 



liut the distal part of its tendon 

 the sole of the foot, ■which are 

 first phalanx. "When the muscle 

 i are extended, while the second 

 long and short flexors. (2) To 

 evert the front part of the foot, 

 the leg and the anterior annular 



Fig. 298.— The Miscles of the Doksum of the Foot. 



Extensor longus digitorum 



Tibialis anticus 



EstenBor brevis digitorum — 



Extensor proprius hallueis 4 jr— 



Dorsal interossei 



Peroneus brevis 



Peroneus tertius 



Flexor brevis minimi digiti 



ligaments; on its inner side, the tibialis anticus and extensor proprius lialluci&, the 

 anterior tibial vessels and nerve with their continuations in the foot. Externally, 

 the peroneus longus and brevis, the musculo-cutaneous nerve, and, lower down, 

 the peroneus tertius. Behind, the anterior tibial nerve above, and the ankle-joint, 

 tarsal and metatarsal bones, and the extensor brevis digitorum below. 



Variations. — The muscle may be divided nearly up to its origin. Tt may give off slips to 

 the extensor jiroprius liallncis, extensor brevis digitorum, or one of the iuterossei. Sometimes 

 also it has au insertion into some of the metatarsal bones. 



