Arteries and arterial branches of the abdominal aorta - a. abdominalis The abdominal aota, formed from the aoa below the diaphragm, extends onto the thoracic surface of the transverse colon from left to right between two splanchnic ligaments (lig. splenocolicum and lig. mesentericum), then between lig. epiploicum (ileocolic ligament) behind and lig suspensorium recti in front, where it further intersects with the middle colon and ends at lig. teretius coli. On the anterior surface of the abdominal aorta there are the inferior phrenic arteries - aa. phrenicae inferiors. Its four branches, arising from the abdominal part of the aorta, are directed upward and to the right under the hepatoduodenal ligament. The first, largest, is a. gastrica dextra. The second is a. gastroepiploica superior, third - a. colica dextra and the fourth - a. pancreatica dextra (ascending branch). As an independent vessel a. jejunalis is located at the root of the ileal mesentery as part of the lesser omentum, participating in the formation of its vascular loop.
From the ventral part of the ascending part of the aoa through the gap between the sympathetic trunk and the nn. iliales the superior phrenic artery emerges - aa, phrenicae superiores. Due to the tightness of the surrounding tissues, each of them gives anastomoses with nearby branches of the celiac trunk - the branches of the adrenal gland, stomach and pancreas