. The anatomy of the human body. Human anatomy; Anatomy. THE TIBIO-PERONEAL ARTERY. 569 proportion to that of the external malleolar and metatarsal arteries. I have seen it as large as the dorsal artery of the foot, by the bifurcation of which vessel it appeared to be formed. It passes transversely outward under the extensor brevis digitornm, anastomoses freely with the external malleolar artery, and gives off the following branches : some which ramify upon the outer side of the os calcis, and anastomose with the peroneal; a branch which runs upon the cuboid bone, sometimes being so large as t
. The anatomy of the human body. Human anatomy; Anatomy. THE TIBIO-PERONEAL ARTERY. 569 proportion to that of the external malleolar and metatarsal arteries. I have seen it as large as the dorsal artery of the foot, by the bifurcation of which vessel it appeared to be formed. It passes transversely outward under the extensor brevis digitornm, anastomoses freely with the external malleolar artery, and gives off the following branches : some which ramify upon the outer side of the os calcis, and anastomose with the peroneal; a branch which runs upon the cuboid bone, sometimes being so large as to be regarded the continuation of the artery, and then passes under the sole of the foot to anastomose with the external plantar ; and, lastly, some branches in front, which anastomose with the metatarsal artery, the place of which vessel it sometimes partially supplies, by giv- ing off the dorsal interosseous arteries. In one case, where the external tarsus artery was very large, it passed transversely outward as far as the outer surface of the cuboid bone, was reflected backward on the outer surface of the calcaneum, and there anasto- mosed very freely with the external malleolar and the peroneal arteries. In another case, the external tarsal artery divided into two branches, one of which ran transversely outward and reached below the sole of the foot, while the other formed the dorsal inter- osseous artery of the fourth interosseous space. The metatarsal artenj (h) generally arises from the front of the dorsal artery of the foot, opposite the posterior extremity of the first interosseous space, sometimes by a common trunk with the external tarsal just described. According to the most regular distribution, it passes transversely outward, opposite the posterior extremities of the several metatarsal bones, and constitutes the dorsal arch, of the metatarsus (i). Three branches given off from the convexity of this arch, which is directed forward, are named the dorsal interosscoas
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