DISSECTION OF THE DOG 



101 



then between the in- 

 terosseous muscle of 

 the second digit and 

 the adductor digiti 

 quinti, until it joins 

 the a. dorsalis pedis in 

 the formation of the 

 plantar arch. 



A. TAHSEA MEDIALIS. — 



The plantar ramus of the 

 saphenous artery is con- 

 tinued, as the medial tarsal 

 artery, along the medial side 

 of the flexor aspect of the 

 tarsus, and forms the arcus 

 plantaris along with the 

 dorsalis pedis artery. The 

 medial tarsal artery then 

 continues to the distal part 

 of the metatarsus and di- 

 vides into the second, third, 

 and fourth plantar meta- 

 tarsal arteries (aa. meta- 

 tarsei plantares II, III, et 

 IV), which join the com- 

 mon plantar digital arteries. 



A. DOBSALIS PEDIS. — 



The continuation of the 

 anterior tibial artery appears 

 deep in the sole between the 

 second and third inter- 

 osseous muscles and under 

 cover of the origin of the 

 m. adductor digiti quinti. 

 Anastomosing with the 

 plantar branch of the 

 saphenous artery it forms 

 the plantar arch (arcus 

 plantaris), from which arise 

 the second, third, and fourth 

 common plantar digital ar- 

 teries (aa. digitales plantares 



Arcus 'plantaris 



a. sapliena. liamiLS plantaris 



aa. digitales plantares 

 -^■'-y' comviunes 



— -^aa. metatarseos plantares 



Fig. 41. — Diagram of the plantar arteries of the pes. 



H 3 



