DISSECTING MANUAL. 



calcanean; to the heel and back part of the sole, piercing the 

 internal annular ligament. Articular, to the ankle-joint. Me- 

 dullary, to the fibula. [653] 



Internal Plantar. Running forward with the internal 

 plantar artery, in the sole beneath the internal annular liga- 

 ment and Abductor hallucis, to the interval between the latter 

 muscle and the Flexor brevis digitorum, it divides into four 

 terminal branches. Collateral branches; muscular, to the Ab- 

 ductor hallucis and Flexor brevis digitorum; plantar cutane- 

 ous, to the inner part of the sole, piercing the plantar fascia 

 between these muscles ; articular, to the inner tarsal and tarso- 

 metatarsal joints. [654] 



Terminal Branches. The first (most internal) pierces the 

 fascia behind the ball of the great toe, and supplies the Flexor 

 hallucis and skin on the inner side of the foot and ball of the 

 great toe; it ends as the plantar digital nerve to the inner side 

 of the great toe. The second, after supplying the First lum- 

 brical, divides into two plantar digital nerves for the adjacent 

 sides of the first and second toes. The third and fourth each 

 divide at the intervals between the second, third, and fourth 

 toes, into two plantar digital branches for the adjacent sides 

 of these toes. The plantar digital nerves supply the whole 

 plantar aspect of the toes, and also their nails and tips dor- 

 sally. [654] 



External Plantar. Running forward and outward in the 

 sole with the external plantar artery, between the Accessorius 

 and Flexor brevis digitorum, it divides near the head of the 

 fifth metatarsal into terminal branches, superficial and deep. 

 Collateral branches; muscular, to the Accessorius and Abductor 

 minimi digiti; cutaneous, piercing the plantar fascia at inter- 

 vals along the external intermuscular septum. The superficial 

 branch (terminal) runs forward between the Flexor brevis digi- 

 torum and Abductor minimi digiti and divides in two parts; 

 one (external branch) supplies the Flexor brevis minimi digiti, 

 sometimes one or both Interossei in the fourth space, the skin 



[302] 



