What double peritoneum extends from the liver to the lesser curvature of the stomach and to the beginning of the duodenum?

The lesser omentum is the correct answer because it is a double layer of peritoneum that connects the liver to the lesser curvature of the stomach and to the first part of the duodenum. It plays a crucial role in supporting the stomach and liver while also containing blood vessels and nerves that supply these organs. The lesser omentum consists of two ligaments: the hepatogastric ligament, which connects the liver to the stomach, and the hepatoduodenal ligament, which connects the liver to the duodenum, and it also contains the hepatic artery, portal vein, and bile ducts as they travel to and from the liver.

In contrast, the greater omentum is a much larger fold of peritoneum that extends from the greater curvature of the stomach down over the intestines, providing cushioning and insulation. The mesocolon is a peritoneal fold that anchors the colon to the abdominal wall but is not involved with the liver or the lesser curvature of the stomach. The falciform ligament, while it does connect the liver to the anterior abdominal wall and diaphragm, does not extend to the stomach or duodenum. Hence, the lesser omentum specifically and accurately describes the structure that connects the liver