The round ligament divides the left part of the liver into medial and lateral sections.

[1] It divides the left part of the liver into medial and lateral sections.

[2][3] The round ligament of the liver is the remnant of the umbilical vein during embryonic development.

These act as an important portacaval anastomosis in severe portal hypertension, resulting in a caput medusae.

[1] The umbilical vein/round ligament inserts around the umbilicus, and is an important landmark of the inner surface of the anterior abdominal wall.