n8 OUTLINES OF ANATOMY, 



Deep tibial fascia, 396. (393) 



Popliteal artery ; terminal branches, 625; Fig. 374. (613) 

 Anterior tibial artery, 632. (620) 



Posterior tibial recurrent, 634. (620) 

 Posterior tibial artery, 626-7; Fig. 377. (614-15) 



Relations : Anteriorly. Posteriorly. At the inner ankle. 

 Branches, 628. (615-16) 



Muscular branches. Medullary artery. Cutaneous branches. 

 Communicating branch. 

 Malleolar or internal malleolar branches. 

 Calcanean or internal calcanean branch. 

 Vessels divided in amputation, 1233. (1209) 

 Posterior tibial nerve, 862-3. (842-3) 

 Branches : 



Internal calcanean or calcaneo-plantar branch. 

 Deep lymphatic vessels of the lower limb, 707. (691) 

 Deep lymphatic glands of the lower extremity, 707. (691) 

 Popliteus, 394; Fig. 292. (391-2) 



Origin. Insertion. Structure. Nerve-supply. Action. Relations. Variations. 



Expose and separate the deep muscles, follow the tendons to the annular ligament ; the insertion will 

 be shown later in the dissection of the foot. 



Flexor longus hallucis, 398; Fig. 292. (395-6) 



Origin. (Insertion.) Structure. Nerve-supply. Action. Relations. Vari- 

 ations. 

 Flexor longus digitorum, 396-7 ; Fig. 292. (393-4-5) 



Origin. (Insertion.) Structure. Nerve-supply. Action. Relations. Vari- 

 ations. 

 Tibialis posticus, 398-9 ; Fig. 292. (396) 



Origin. (Insertion.) Structure. Nerve-supply. Action. Relations. 

 Peroneal artery, 627-8; Fig. 377. (615-16) 

 Branches of the peroneal artery : 



Muscular branches. Medullary. Communicating branches. 

 Cutaneous branches. External calcanean. Terminal branch. 

 Anterior peroneal artery, Fig. 380. 

 Points in tenotomy and guides to the tendons, 1237-8. (1213-14) 



Tendo-Achillis. Tibialis anticus. Tibialis posticus. Peronei. 



Sole of the Foot. 



Continue the median incision to the end of the middle toe. Make a transverse incision at the base of the 

 toes, and from this a median incision to the end of each toe, remove the skin, exposing the superficial 

 fascia and cutaneous nerves. 



The sole of the foot is supplied by the internal calcanean or calcaneo-plantar cutane- 

 ous branch of the posterior tibial, and cutaneous branches from the internal plantai 

 and external plantar nerves, 863 ; Fig. 469. (843) 



Dissect off the superficial fascia and expose the plantar fascia. Carefully preserve the superficial nerves 

 and vessels. 



Plantar fascia, 399-400-1. (3978) 



Central part. Inner portion. External portion. 

 Superficial transverse ligament. 



" The lateral portions of the plantar fascia should be raised from the subjacent muscles. The three 

 superficial muscles of the sole are then exposed to view and their connections can be studied. The 

 flexor brevis digitorum is placed in the middle, the abductor minimi digiti extends along the outer mar- 

 gin of the sole, and the abductor hallucis along the inner margin of the sole. In the interval between 

 the abductor hallucis and flexor brevis digitorum the internal plantar nerve and artery will be found. 

 Follow the nerve toward the toes and dissect out its four digital branches. In doing so, care must be 

 taken of the muscular twigs which are given to the flexor brevis hallucis and the innermost lumbrical 

 muscle. Slender branches of the internal plantar artery accompany the digital nerves. Now trace the 

 trunk of the internal plantar nerve backward by carefully separating the flexor brevis digitorum and 

 the adductor hallucis along the line of the intermuscular septum. It will be found to give a branch of 

 supply to each of these muscles. In the next place, separate the contiguous borders of the flexor brevis 



