Structure injured while resecting the free edge of lesser omentum is

Lesser omentum: - It extends from liver to stomach (lesser curvature) and duodenum (first 2 cm). The pa of lesser omentum from liver to stomach is called hepatogastric ligament, and pa from liver to duodenum is called hepatoduodenal ligament. Hepatogastric ligament forms anterior free wall of lesser sac (omental bursa) and contains right and left gastric vessels, branches of gastric nerves and lymph vessels. Hepatoduodenal ligament forms right free margin, contains poal vein, hepatic aery proper, bile duct, lymphatics and hepatic plexus of nerves. Lesser omentum develops from ventral mesogastrium (dorsal pa).