Final answer:
The Ligamentum Venosum separates the left lobe from the caudate lobe of the liver, serving as a remnant of the fetal ductus venosus which directed oxygenated blood from the placenta to the heart.
Step-by-step explanation:
The Ligamentum Venosum (ductus venosus) separates the left lobe from the caudate lobe of the liver.
Initially, during fetal development, the ductus venosus shunts oxygenated blood from the placenta, bypassing the semifunctional fetal liver and directing it toward the heart.
As the baby grows and the liver matures after birth, the ductus venosus closes and eventually forms the ligamentum venosum.
The liver is divided into a larger right lobe and a smaller left lobe, along with an inferior quadrate lobe and a posterior caudate lobe defined by internal features.
Notably, the falciform ligament and ligamentum teres hepatis, remnants of the umbilical vein, separate the larger right and smaller left lobes anteriorly.