THE ARTERIES 751 
the left part of the stomach, giving off a branch which anastomoses with the right 
gastric artery. The splenic artery gives off pancreatic branches, and reaches the 
ventral part of the spleen. It gives off the left gastro-epiploic and a gastro- 
splenic branch which passes to the dorsal end of the spleen, which it supplies, 
besides giving off twigs to the left extremity of the stomach. 
The anterior mesenteric artery arises close behind the cceliac. It gives off a 
common trunk for two colic arteries and the ileo-cxeco-colic. The right colic 
artery is a small vessel which goes to the right part of the colon. The middle 
colic artery, much the largest of the colic vessels, supplies the transverse colon 
and part of the left colon. The ileo-ceco-colic gives off ileal, cecal, and colic 
branches. Anastomoses are established between the colic arteries, and the ileal 
branch anastomoses with the last jejunal artery. The trunk is continued as the 
Fic. 620.—EnpD BRANCHES OF AORTA AND RADICLES OF POSTERIOR VENA Cava OF Doc. 
a, Abdominal aorta; b, posterior mesenteric artery; c, lumbar arteries; ¢, circumflex iliac artery; e, external iliac 
artery; f, deep femoral artery; g, posterior abdominal artery; h, external pudic artery; a, femoral artery; 7, 7, internal 
iliac arteries; k, visceral branch of 7; l, parietal branch of 7; m, ilio-lumbar artery; n, anterior gluteal artery; o, lateral 
cocecygeal artery; p, posterior gluteal artery; gq, umbilical artery; 7, middle hemorrhoidal artery; 8, posterior hemor- 
thoidal artery; s, perineal artery; ¢, art. profunda penis; m, art. bulbi urethrs; v, art. dorsalis penis; w, middle sacral 
artery; a’, posterior vena cava; other veins are satellites of arteries and correspondingly named; 1, ilio-psoas muscle; 
2, tendon of psoas minor; 3, abdominal muscles; 4, sartorius; 5, rectus femoris; 5’, vastus medialis; 6, pectineus; 6’, 
adductor; 7, gracilis; 8, symphysis pelvis; 9, illum; 10, piriformis; 11, gluteus superficialis; 12, obturator internus; 
13, penis; 14, lumbar vertebra. (After Ellenberger, in Leisering’s Atlas.) 
artery of the small intestine, giving off fourteen to sixteen branches (Aa. jejunales), 
which form a series of anastomotic arches in the mesentery near the bowel. 
Two phrenico-abdominal arteries (Aa. phrenicze caudales) come off from the 
aorta behind the anterior mesenteric, and divide into phrenic and abdominal 
branches. Each phrenic artery diverges from its fellow in descending on the ab- 
dominal surface of the corresponding crus of the diaphragm to the sternal part. 
The medial branches anastomose with those of the opposite artery, the lateral 
branches with intercostal arteries chiefly. The abdominal arteries pass outward 
across the psoas muscles, give branches to the lumbar muscles, the renal fat and 
adrenals, and ramify in the oblique abdominal muscles. 
The renal and spermatic arteries offer no special features. 
The utero-ovarian artery divides near the ovary into three or four branches 
