!S 



: 



640 ANGIOLOGY 



and then between the Flexor digitorum brevis and Quadratus plantse; as it run 

 forward to the base of the little toe it lies more superficially between the Flexor 

 digitorum brevis and Abductor digiti quinti, covered by the plantar aponeurosis 

 and integument. The remaining portion of the vessel is deeply situated; it extends 

 from the base of the fifth metatarsal bone to the proximal part of the first inter- 

 osseous space, and forms the plantar arch; it is convex forward, lies below the bases 

 of the second, third, and fourth metatarsal bones and the corresponding Interossei 

 and upon the oblique part of the Adductor hallucis. 



Branches. The plantar arch, besides distributing numerous branches to th 

 muscles, integument, and fasciae in the sole, gives off the following branches: 



Perforating. Plantar Metatarsal. 



The Perforating Branches (rami perforantes) are three in number; they ascend 

 through the proximal parts of the second, third, and fourth interosseous spaces, 

 between the heads of the Interossei dorsales, and anastomose with the dorsal 

 metatarsal arteries. 



The Plantar Metatarsal Arteries (aa. metatarsece plantares; digital branches') are 

 four in number, and run forward between the metatarsal bones and in contact 

 with the Interossei. Each divides into a pair of plantar digital arteries \vhich sup- 

 ply the adjacent sides of the toes. Near their points of division each sends upward 

 an anterior perforating branch to join the corresponding dorsal metatarsal artery. 

 The first plantar metatarsal artery (arteria princeps hallucis} springs from the junc- 

 tion between the lateral plantar and deep plantar arteries and sends a digital 

 branch to the medial side of the first toe. The digital branch for the lateral side 

 of the fifth toe arise from the lateral plantar artery near the base of the fifth 

 metatarsal bone. 



BIBLIOGRAPHY. 



BEAN, R. B.: A Composite Study of the Subclavian Artery in Man, Am. Jour. Anat., 1905, iv. 



BREMER, J. L. : On the Origin of the Renal Artery in Mammals and its Anomalies, Am. Jour. 

 Anat., 1915, xviii. 



BROMAN, IVAR: Ueber die Entwickelung " Wanderung, " und Variation der Bauchaortenzweige 

 bei den Wirbeltieren, Ergebnisse der Anat. u. Entwick., 1906, xvi. 



EATON, P. B.: The Celiac Axis, Anat. Rec., 1917, xiii. 



HENLE, J. : Anatomic des Menschen. 



HITZROT, J. M.: A Composite Study of the Axillary Artery in Man, Johns Hop. Hosp. Bull., 

 1901, xii. 



LIPSHUTZ, B. B.: Studies on the Blood Vascular Tree. I. A Composite Study of the Femoral 

 Artery, Anat. Rec., 1916, x. 



POIRIER et CHARPY: Trait6 d' Anatomic Humaine. 



Quain's Anatomy. 



