in taxon develops from develops from Mammalia umbilical vein round ligament of liver https://cdn.humanatlas.io/digital-objects/ref-organ/liver-female/v1.2/assets/3d-vh-f-liver.glb https://cdn.humanatlas.io/digital-objects/ref-organ/liver-male/v1.2/assets/3d-vh-m-liver.glb ligamentum teres hepatitis MESH:D000069592 ligamentum teres Wikipedia:Round_ligament_of_liver SCTID:262209009 NCIT:C34008 ligamentum teres hepatis UMLS:C0230247 UBERON:0006588 ligamentum teres of liver A degenerative string of tissue that exists in the free edge of the falciform ligament of the liver. Anatomically, the round ligament divides the left part of the liver into medial and lateral sections. The round ligament represents the remnant of the fetal left umbilical vein. The round ligament therefore only exists in mammals. Prenatally and for a month or two after birth, the left umbilical vein is patent, subsequently degenerating to fibrous tissue, the round ligament. The umbilical vein/round ligament inserts around the umbilicus and is an important landmark of the inner surface of the anterior abdominal wall[WP]. FMA:14079 round ligament of uterus transformed vein ligament of liver