THE EXTERNAL PLANTAR ARTERY. 



499 



reach the base of the fifth metatarsal bone ; it then turns obliquely inwards across 

 the sole, to gain the interval between the bases of the first and second metatarsal 

 bones, where it joins the dorsal artery of the foot ; and thus is completed the plantar 

 arch, the convexity of which is turned forwards. At first the artery is placed, 

 together with the external plantar nerve, between the calcaneum and the abductor 

 hallucis ; farther on it lies between the flexor brevis digitorum and flexor acces- 

 sorius. As it turns forwards it lies in the interval between the short flexor of the 

 toes and the abductor of the little toe, being placed along the line separating the 



12 



Fig. 394. SUPERFICIAL VIEW OF THE ARTERIES IN THE SOLE OF THE RIGHT FOOT. (Tiedemann.) 



a, tuberosity of the calcaneum close to the origins of the flexor brevis digitorum (cut short) and 

 the abductor hallucis, of which a part is removed to show the plantar arteries ; b, abductor hallucis ; 

 C, abductor minimi digiti ; d, tendon of the flexor longus hallucis ; e, tendon of the flexor longus 

 digitorum ; e f , its four slips, close to the lumbricales muscles, passing on to perforate the tendons of 

 the flexor brevis ; /, flexor accessorius ; g, flexor brevis minimi digiti ; 1, posterior tibial, dividing 

 into the plantar arteries ; 2, 2', external plantar ; 3, internal plantar ; 3', the same passing forwards 

 to communicate with 4, the digital branch for the great toe, derived from the dorsal artery of the foot ; 



5, first digital branch of the fifth toe ; 6, placed in the angle of division of the second digital artery, 

 between the fourth and fifth toes ; 7, third digital artery dividing similarly between the third and 

 fourth toes ; 8, fourth digital artery dividing between the second and third toes ; 9, digital artery 

 dividing between the first and second toes ; 10, internal digital artery of the great toe ; 11, calcaneal 

 branches of the external plantar artery, anastomosing with 12, the calcaneal branches of the posterior 

 peroneal artery. 



Fig. 395. DEEP VIEW OF THE ARTERIES IN THE SOLE OF THE RIGHT FOOT. (Tiedemann.) 



All the muscles have been removed : a, calcaneal tuberosity ; b, internal cuneiform bone ; a to e, 

 long, and d, short plantar ligament ; e, prolongation of the tibialis posticus tendon ; /, one of the 

 sesamoid bones of the great toe; 1, posterior tibial artery dividing into the plantar arteries ; 2, 2', 

 external plantar artery ; 2', 2". plantar arch ; 3, 3', internal plantar artery ; 3", its communication 

 with the internal digital artery of the great toe ; 4, branches of the internal plantar to the inner side 

 of the foot ; 5, 5', first digital branch ; 6, second digital artery ; 6' its division between the fourth 

 and fifth toes ; 7, third digital artery ; 7', its distribution to the third and fourth toes ; 8, fourth 

 digital artery ; 8', its distribution to the second and third toes ; 9, fifth digital artery ; 9', its distribu- 

 tion to the first and second toes ; 10, internal digital branch of the great toe ; at the upper numbers, 



6, 7, and 8, the posterior perforating branches are partially seen ; at 2", the dorsal artery of the foot 

 (in this instance of small size) is seen joining the plantar arch ; 11, and 12, calcaneal branches of the 

 external plantar and posterior peroneal arteries. 



YOL. II. K K 



