CIECULATORY SYSTEJI OF THE DOG 



Fig. (j21, — Artehies of Pelmc 

 Limb of Dog; Medial \'ie\^ 

 a, Abdominal aorta; b. It m- 

 oral; c, c', deep femoral; rf, pos- 

 terior abdominal; e, external pudic; /, medial cir- 

 cumflex; g, anterior femoral (accompanied by an- 

 terior branch of^ femoral nerve) ; h, lateral circum- 

 flex; 2, k, muscular branches; I, articular branch; m, 

 saphenous; n, o, plantar and dorsal branches of saphen- 

 ous; q, saphenous nerve; r, obturator nerve; 1, ilio- 

 psoas; :', ilium; .3, gracilis; 4, semitendinosus; S, 

 adductor magnus; B, adductor longus; 7, quadri- 

 ceps femoris; S, sartorius; 9, semimembranosus; 10, 

 gastrocnemius; //, tibialis anterior; 12, tibia. (Ellen- 

 berger-Baum, Anat. d. Hundes.) 



which supply the ovary and uterine tube 

 and anterior part of the cornu of the 

 uterus, anastomosing with the uterine 

 artery. 



The posterior mesenteric artery is 

 small. It divides into two branches which 

 supply the terminal part of the colon and 

 the anterior part of the rectum; the 

 former (A. colica sinistra) passes forward 

 along the left part of the colon and anas- 

 tomoses with the middle colic branch of 

 the anterior mesenteric artery; the latter 

 (A. hsemorrhoidalis cranialis) anastomoses 

 with the middle hemorrhoidal branch of 

 the internal pudic artery. 



The circumflex iliac artery usually 

 arises from the terminal part of the 

 aorta. 



The external iliac artery usually gives 

 off no collateral branches. 



The femoral artery has the usual 

 course in the femoral triangle and canal. 

 The deep femoral artery gives off the 

 posterior abdominal and external pudic 

 arteries by a very short common trunk 

 or separately. In the female the external 

 pudic divides into anterior and posterior 

 branches; the former runs forward, sup- 

 plies branches to the superficial inguinal 

 lymph glands, the mammary glands and 

 skin, and anastomoses with the mammary 

 branch of the internal thoracic artery; the 

 posterior branch pursues a flexuous course 

 between the thighs to the vulva, where its 

 terminal branches anastomose with the 

 internal pudic artery. In the male the 

 artery crosses the medial side of the sper- 

 matic cord and runs forward to the 

 umbilical region; it supplies the inguinal 

 lymph glands, prepuce, and skin. The 

 anterior femoral artery may arise by a 

 short common trunk with the lateral cir- 

 cumflex. The former, accompanied by 

 the anterior branch of the femoral nerve, 

 dips in between the rectus femoris and 

 vastus medialis. The lateral circumflex 

 artery passes forward between the sar- 

 torius medially and the rectus femoris 

 and tensor fasciae latae laterally and sup- 

 plies branches to these muscles and the 

 glutei. In addition to muscular branches 

 of considerable size, an articular branch 

 (A. genu suprema) arises a little below 

 the middle of the thigh and runs down- 



