Separates liver anteriorly from kidney and suprarenal gland posteriorly
Lobes
Left, right, caudate, quadrate
Functional "left liver" includes left lobe, caudate and quadrate lobes
Porta hepatis
Transverse fissure on visceral surface between caudate and quadrate lobes
Provides entrance/exit for:
Portal vein
Hepatic artery
Hepatic nerve plexus
Hepatic ducts (left and right converge to form the common hepatic duct)
Lymphatic vessels
Vascular supply (Section 4-6: Abdomen-Visceral Vasculature)
Liver receives blood from
Portal vein (70%)
Hepatic artery (30%)
Hepatic veins (3)
Formed by union of central veins
Drain directly into the IVC inferior to diaphragm
Lymphatics
Drain mainly to the hepatic nodes at the porta hepatis
From hepatic nodes → celiac nodes → cisterna chyli
Nervous supply (Section 4-7: Abdomen-Innervation) is derived from the hepatic nerve plexus
Accompanies branches of hepatic artery and portal vein
Sympathetic fibers from celiac plexus
Parasympathetic fibers from anterior and posterior vagal trunks
Role unknown except for vasoconstrictionGallbladder
[Plate 280, Gallbladder, Extrahepatic Bile Ducts, and Pancreatic Duct]Lies in fossa at junction of right and left lobes of liver
Connected to liver by fibrous capsule of liver