human_reference_atlas part of Homo sapiens large intestine proximal-distal subdivision of colon sigmoid colon http://upload.wikimedia.org/wikipedia/commons/3/3b/Dickdarm-Schema.svg https://ccf-ontology.hubmapconsortium.org/objects/v1.2/SBU_F_Intestine_Large.glb https://ccf-ontology.hubmapconsortium.org/objects/v1.2/SBU_M_Intestine_Large.glb sigmoid flexure The part of the large intestine that is closest to the rectum and anus. It forms a loop that averages about 40 cm. in length, and normally lies within the pelvis, but on account of its freedom of movement it is liable to be displaced into the abdominal cavity. BTO:0000645 EFO:0000846 Wikipedia:Sigmoid_colon AS UMLS:C0682612 MESH:D012809 sigmoid colon galen:SigmoidColon sigmoid colon EMAPA:36391 NCIT:C12384 UMLS:C0227391 MAT:0000314 MIAA:0000314 UBERON:0001159 uberon CALOHA:TS-2044 pelvic colon sigmoid colon FMA:14548 SCTID:362166007 NCIT:C33550 colon sigmoideum