blood flow in a portal system.
portal circulation n.
Circulation of blood to the liver from the small intestine via the portal vein.
- Portal fissure
portal fissure n. A transverse fissure on the visceral surface of the liver between the caudate and quadrate lobes, lodging the portal vein, hepatic artery, hepatic nerve plexus, hepatic ducts, and lymphatic vessels. Also called caudal transverse fissure.
- Portal cirrhosis
portal cirrhosis n. See Laënnec’s cirrhosis.
- Portal frame
noun 1. (civil engineering, building trades) a frame, usually of steel, consisting of two uprights and a cross beam at the top: the simplest structural unit in a framed building or a doorway
- Portal hypertension
portal hypertension n. Hypertension in the portal system as seen in cirrhosis of the liver and other conditions causing obstruction to the portal vein.