+25 Portal System References. Author information and affiliations last update: Its main function is to quickly transport and exchange hormones between the hypothalamus arcuate nucleus and anterior pituitary gland.
Three important portal systems are. Essentially, it drains the structures supplied ultimately by the celiac (except for the gonads), anterior mesenteric, gastrosplenic, and posterior. For this reason, portal vein most commonly refers to the hepatic portal vein.
