Blood supply to greater omentum is provided by:
Gastric aery
Gastroepiploic aery
Splenic aery
All of the above
The blood supply to the greater omentum is derived from the right and left gastroepiploic aeries. The venous drainage parallels the aerial supply to a great extent, with the left and right gastroepiploic veins ultimately draining into the poal system. Ref: Schwaz's principle of surgery 9th edition, chapter 35.