jejunum NCIT:C12388 MESH:D007583 SCTID:181248002 Wikipedia:Jejunum CALOHA:TS-0496 galen:Jejunum MAT:0000045 MA:0000340 UMLS:C0022378 FMA:7207 MIAA:0000045 BTO:0000657 GAID:318 VHOG:0000053 EFO:0001333 EMAPA:18666 The portion of the small intestine that extends from the duodenum to the ileum. EV:0100074 subdivision of digestive tract