FIGURE 2  A retroflexed view after transgastric access showing the parietal peritoneum and bowel loops

From the following article:

Surgery Insight: natural orifice transluminal endoscopic surgery—an analysis of work to date

Mihir S Wagh and Christopher C Thompson

Nature Clinical Practice Gastroenterology & Hepatology (2007) 4, 386-392
doi:10.1038/ncpgasthep0867