Arterial Supply for to adrenal glands of the South American fur seal Arctocephalus australis Zimmerman, 1783 (Pinnipedia, Otariidae)

Abstract

An anatomical study has been carried out on the arterial branching system for South American fur seal (Arctocephalus australis Zimmerman, 1783) adrenal glands blood supply. A female adult South American fur seal were injected through the external jugular veins with a colored solution of Neoprene latex. Soon after this step they were maintained for fixation in a 10% aqueous solution of formalin, being dissected right after this procedure. The following observations were then carried out: the right adrenal gland is supplied by one branch of the descendent aorta artery and celiac artery, by three branches of 5^th right lumbar artery and three branches of right renal artery. The left adrenal gland is supplied by two branches from the descendent aorta artery, one branch of the celiac artery, and the 4^th left lumbar artery, two branches of the left renal artery and one branch of the ovaric artery. They dimensions are 26.00 mm and 17.20 mm of length, 9.40 mm and 9.30 mm of width and 3.15 mm and 7.00 mm of thickness, respectively for the right and left.