Neurovasculature of the leg and knee (anterior view) (Latin)

The a. tibialis anterior and its branches supply arterial blood to the anterior aspect of the leg (crus). Arising from the a. poplitea, it passes from the posteriorly located fossa poplitea to the anterior leg (crus) via an oval aperture in the proximal part of the membrana interossea, medial to the caput fibulae. The a. tibialis anterior continues along the anterior aspect of the membrana interossea between the tibia and fibula. In the region of the art. talocruralis (ankle joint), it gives off the a. malleolaris anterior medialis and a. malleolaris anterior lateralis for supply of the art. talocruralis (ankle joint), terminating in the foot (pes) as the a. dorsalis pedis. The knee (genu) is supplied by a network of interlacing branches of the aa. femoralis et poplitea, collectively this network is called the rete articulare genus.Venous drainage occurs via the dual action of deep and superficial venous systems, with the vv. tibiales anteriores draining deep structures of the anterior leg (crus) and the vv. saphena magna et parva draining superficial structures. All lower limb veins eventually empty into the v. femoralis.The n. fibularis communis along with its two branches, the nn. fibularis superficialis et profundus, provides innervation to the compartimenta laterale et anterius cruris, respectively. The n. fibularis communis is the smaller terminal branch of the n. ischiadicus, the larger terminal branch being the n. tibialis.