ANGIOLOGY 



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along the posterior surface of the membrane located between the 

 tibia and fibula, and sends branches for the flexor digitorum com- 

 munis et profundus. It then breaks through the membrane, 

 reaches the anterior side and there communicates with the anterior 

 tibial plexus. It gives off branches to the muscles on the anterior 

 side of the lower thigh and the skin, and passes between the outer 

 and the middle malleolus of the tarsal bones. It passes to the 

 plantar surface and divides between the toes. In addition to the 



FlG. 69. Blood-vessels and nerves of the femoro-tibial region, 

 the tibia removed. 



A section of 



A. Veins, arteries and nerves dissected as in B. 



B. V, Vein. A, Artery. N, Nerve, i, Vena poplitealis. 2, The three veins 

 forming the vena poplitealis. 3, Vena femoris interna profunda. 4, Vena femoris 

 anterior. 5, Vena cruralis. 6, Vena cutanea abdominalis femoralis. 7, Vena 

 cutaneous cruralis. 8, Deep vein of the knee-joint. 9, Ischiadic artery. 10, 

 Branches of ischiadic artery to flexure of knee, n, Anterior tibial artery. 12, 

 Posterior tibial artery. 13, Ischiadic nerve. 14, Trunk (a branch of the ischi- 

 adic) which gives off the superficialis peroneus and peroneus profundus. 15, 

 Median branch of ischiadic nerve. 16, Superficialis peroneus. 17, Lateral 

 branch of the ischiadic nerve. 



plantar branches there are given off dorsal branches between the 

 third and the fourth toes. These branches form the direct continua- 

 tion of the dorsal vessels of the anterior tibial plexus. 



The arteria pudenda communis (Fig. 70, No. 20) passes to the 

 depressor coccygeus muscle, gives off a branch to the caudal part 

 of the kidney, crosses the ureter, provides the ischio-pubic and 

 pubio-coccygeus, or depressor coccygis lateralis, muscles, and on 



