The origin and branching of cranial mesenteric artery in fetal dogs (Canis familiaris) of breed American pit bull terrier.
Were studied the origin and ramifications of the cranial mesenteric artery in 30 fetuses of dogs bred American Pit Bull Terrier, 12 females and 18 males. These animals were from kennels in the region of the Federal District and were derived from natural deaths or abortions. The collected pieces were prepared with an injection of Neoprene 450 latex colored with pigment specific in the descending thoracic aorta, and subsequently fixed in aqueous 10% formal. The cranial mesenteric artery originated separately from the abdominal aorta caudal to the celiac artery in all dogs studied, as well as gave the right and middle colic arteries, ileocecocolic, cecum, ileocecal, ileal, and jejunal pancraticoduodenal flow. The cranial mesenteric sent the following branches: the left adrenal (56.67%), right adrenal (50%), pancreatic of the mesenteric artery (10%), colic (80%), duodenal of the first jejunal artery (3.33%) and caudal pancreaticoduodenal (90%). The results of this study showed a uniformity in the animals studied in relation to the origin of mesenteric artery and the delivery of some branches. The main changes were observed regarding the presence of branches left and right adrenal, pancreatic of the mesenteric artery and duodenal of the first jejunal artery, as well as the number of branches emitted by jejunal arteries.