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In human anatomy, the abdominal aorta is the largest artery in the abdominal cavity. As part of the aorta , it is a direct continuation of the descending aorta (of the thorax ). [ 1 ]
More rarely, it may originate directly from the aorta. [1] It may give off a small branch to the kidney. [1] There may be two or three inferior suprarenal arteries in some people. [1] Its diameter changes significantly with age. [4]
The renal circulation supplies the blood to the kidneys via the renal arteries, left and right, which branch directly from the abdominal aorta. Despite their relatively small size, the kidneys receive approximately 20% of the cardiac output. [1]
The middle suprarenal artery (usually) arises from lateral aspect of the abdominal aorta. Its origin occurs at roughly the same level as that of the superior mesenteric artery . [ 1 ] : 1240
The aorta supplies all of the systemic circulation, which means that the entire body, except for the respiratory zone of the lung, receives its blood from the aorta. Broadly speaking, branches from the ascending aorta supply the heart; branches from the aortic arch supply the head, neck, and arms; branches from the thoracic descending aorta ...
The inferior phrenic artery is a bilaterally paired artery of the abdominal cavity which represents the main source of arterial supply to the diaphragm. Each artery usually arises either from the coeliac trunk or the abdominal aorta, however, their origin is highly variable and the different sites of origin are different for the left artery and right artery.
Before reaching the hilus of the kidney, each artery divides into four or five branches. The anterior branches (the upper, middle, lower and apical segmental arteries) lie between the renal vein and ureter, the vein being in front, the ureter behind. The posterior branches, which are fewer in number and include the posterior segmental artery ...
The adrenal arteries are arteries in the human abdomen that supply blood to the adrenal glands.. The adrenal glands receive input from three different arteries on both the left and right sides of the body: