part of part of develops from develops from superior recess of lesser sac EHDAA:2343 recessus superior omentalis superior omental bursa MA:0000447 superior recess of omental bursa EMAPA:18049 FMA:14708 classified as a cavity in EHDAA2, organ segment in FMA. We hedge and use a union UBERON:0006299 EHDAA2:0001958 recessus superior bursae omentalis SCTID:263190002 superior recess UBERON:0001180 omental bursa superior recess lesser sac anatomical cavity lesser sac cavity