Liver, Gross Anatomy

Description

Positioned in the right hypochondriac region and extending medially into the epigastrium, the adult female liver is shown with its convex diaphragmatic (superior) surface and the sharp inferior margin that parallels the costal arch. The right lobe dominates laterally, separated from the smaller left lobe by the falciform ligament and the anterior free edge that continues inferiorly as the ligamentum teres hepatis within the umbilical fissure. Along the inferior surface, the visceral relations logically include the porta hepatis with the transverse fissure for the portal vein, proper hepatic artery, and hepatic ducts, with the gallbladder fossa lying anterior and inferior to the right lobe. An external gross view like this anchors surface anatomy and procedural planning because liver position shifts with respiration, body habitus, and hepatomegaly, yet its fixed peritoneal reflections (falciform, coronary, and triangular ligaments) constrain mobilization. Surgeons depend on these landmarks during open or laparoscopic cholecystectomy and hepatic resection, where traction on the liver and exposure of the hepatoduodenal ligament set up the field for a Pringle maneuver to control inflow at the porta hepatis. Clear lobe orientation also supports segmental thinking (Couinaud anatomy) even when segment boundaries are not explicitly drawn. Educators can drop this plate into gross anatomy, abdominal surgery, or hepatobiliary blocks to pair with RUQ physical exam, ultrasound windows, and CT correlation of the diaphragm, costal margin, and porta hepatis. Publishers will find it suited for patient education on fatty liver disease, cirrhosis, and biliary pathology, where readers need a clean reference for what “upper right quadrant” means in real anatomy. Anatomical accuracy verified by SciePro's Medical Advisory Board.