OF THE FOOT. 



533 



is attached to that bone. The muscle divides, in front, into two portions, which 

 are inserted into the inner and outer sides of the base of the first phalanx of 

 the great toe, a sesaruoid bone being developed in each tendon at its insertion. 

 The inner portion of thia muscle is 

 blended with the Abductor hallucis pre- 

 vious to its insertion, the outer with the 

 Adductor obliquus hallucis. and the ten- 

 don of the Flexor longus hallucis lies in 

 a groove between them. 



Relations. By its xup'-rlii-ial surface, 

 with the Abductor hallucis, the tendon of 

 the Flexor longus hallucis, and plantar fas- 

 cia : by its deep surf <.?. with the tendon 

 of the Peroneus longus and metatarsal 

 bone of the great toe ; by its inner bor- 

 der, with the Abductor hallucis; by its 

 outer border, with the Adductor obliquus 

 hallucis. 



The Adductor obliquus hallucis is a 

 large, thick, fleshy mass passing obliquely 

 across the foot and occupying the hollow 

 space between the four inner metatarsal 

 bones. It arises from the tarsal extrem- 

 ities of the second, third and fourth met- 

 atarsal b'.tiies and from the sheath of the 

 tendon of the Peroneus longus, and is 

 inserted, together with the outer portion 

 of the Flexor brevis hallucis, into the 

 outer side of the base of the first phalanx 

 of the great toe. 



The small muscles of the great toe, 

 the Abductor. Flexor brevis. Adductor 

 obliquus. and Adductor transversus. like 

 the similar muscles of the thumb, give 

 off fibrous expansions, at their inser- 

 tions, to blend with the long Extensor 

 tendon. 



The Flexor brevis minimi digiti lies 

 on the metatarsal bone of the little toe, 

 and much resembles one of the Interossei. 

 It arises from the base of the metatarsal 

 bone of the little toe. and from the sheath 

 of the Peroneus longus ; its tendon is 

 inserted into the base of the first phalanx of the little toe on its outer side. 



Relations. By its superficial surface, with the plantar fascia and tendon 

 of the Abductor minimi digiti ; by its deep surface, with the fifth metatarsal 

 bone. 



The Adductor transversus hallucis (Transversus pedis) is a narrow, flat, muscular 

 fasciculus, stretched transversely across the heads of the metatarsal bones, between 

 them and the flexor tendons. It arises from the inferior metatarso-phalangeal 

 ligaments of the three outer toes, sometimes only from the third and fourth and 

 from the transverse ligament of the metatarsus ; and is inserted into the outer side 

 of the first phalanx of the great toe. its fibres being blended with the tendon of 

 insertion of the Adductor obliquus hallucis. 



Relations. By its mperficial surface, with the tendons of the long and short 

 Flexors and Lumbricales ; by its deep surface, with the Interossei. 



FIG. 335. Muscles of the sole of the foot. Third 

 layer. 



