290 



MUSCLES OF THE LOWER LIMB. 



two parts or heads in front, arises by a flat tendinous process, which extends 

 along a great part of its upper surface, from the inner border of the cuboid 

 bone, and from the tendinous band sent to the cuneiform bones from the 

 tendon of the tibialis posticus. The heads into which the muscular mass 

 divides are intimately connected each with one of the sesamoid bones of the 

 first metatarso-phalangeal articulation, and are inserted, one into the inner 

 border of the base of the first phalanx in union with the abductor pollicis, 

 the other into the outer border in union with the adductor. 



The tendon of the flexor longus pollicis runs in the interval between the heads of 

 the short flexor. 



The adductor pollicis pedis, placed obliquely in the sole of the foot, and 

 forming a thick fleshy mass, arises from the tarsal extremities of the third 

 and fourth metatarsal bones, and from the sheath of the peroneus longus 

 muscle ; narrowing as it passes forwards, it is inserted, conjointly with the 

 external head of the flexor brevis pollicis, into the base of the first phalanx 

 of the great toe. 



The transversus pedis consists of a series of narrow fasciculi of fleshy 

 fibres, placed transversely under cover of the flexor tendons, and arising, 

 beneath the heads of the second, third, and fourth metatarsal bones, from 

 the ligaments connecting those bones with the phalanges. Its outer ex- 

 tremity is attached usually to the lateral ligament connecting the fifth 

 metatarsal bone with the first phalanx of the little toe ; but it often 

 commences only at the fourth. The fibres of the muscle pass transversely 

 inwards, and are inserted in union with the adductor pollicis into the first 

 phalanx of the great toe. 



Fig. 221. 



Fig. 221. DEEPER PLANTAR MUSCLES, AS SEEN AFTER THE 



REMOVAL OP THE LONG FLEXOR TENDONS AND THE ACCES- 

 SORY AND LUMBRICALES MUSCLES. 



1, flexor brevis pollicis ; 2, adductor pollicis ; 3, transversus 

 pedis ; 4, flexor brevis minimi digiti ; 5, 5, part of the third 

 and fourth dorsal interossei ; 6, 6, the second and third plantar 

 interossei ; 7, tendon of the peroneus longus passing round 

 the cuboid bone to enter its groove ; 8, long plantar ligament 

 passing forwards to the ridge of the cuboid bones and spreading 

 over the groove of the peroneus tendon : in the upper part of 

 the figure, on the inner side, the opened sheaths of the flexor 

 longus pollicis and flexor longus digitorum are shown. 



MUSCLES OF THE LITTLE TOE. The abductor 

 minimi digiti has a wide origin behind, from the 

 front of both tubercles on the under surface of the 

 os calcis, from the external intermuscular septum, 

 and from the upper surface of the process of the 

 plantar fascia which extends from the external 

 tubercle to the base of the fifth metatarsal bone. 

 The fleshy fibres end in a tendon, which, after sliding 

 along a smooth impression on the inferior surface 

 of the base of the fifth metatarsal bone, is inserted 

 into the external surface of the base of the first 

 phalanx of the little toe. 



This muscle is covered by the plantar fascia. Its deep surface is in contact with 



