proximally connected to foregut midgut http://upload.wikimedia.org/wikipedia/commons/3/3d/Illu_small_intestine.jpg Note we define this generically to include invertebrates (partly for consistency with GO), but the class may be split in future. We may explicitly make this a developmental class EMAPA:16255 UMLS:C0231052 EHDAA2:0001185 BTO:0000863 FBbt:00005383 TGMA:0001036 mesenteron Middle subdivision of a digestive tract[CJM]. In vertebrates: The middle part of the alimentary canal from the stomach, or entrance of the bile duct, to, or including, the large intestine[GO]. UBERON:0001045 FMA:45617 EHDAA:983 XAO:0000103 BILA:0000086 Wikipedia:Midgut NCIT:C34210 EFO:0001950 SCTID:361410004 VHOG:0000290 MA:0001564 midgut subdivision of digestive tract