<prompt> Yenza inguqulo eyinkimbinkimbi yalesi sigwebo Isigmoid colon i-pelvic colon; sigmoid flexure yingxenye yamathumbu amakhulu eseduze kakhulu ne-rectum kanye ne-anus.  <response>: Yiqiniso, inguqulo eyinkimbinkimbi yomusho ithi Isigmoid colon pelvic colon; sigmoid flexure yakha iluphu enobude obucishe bube ngamasentimitha angu-40, futhi ngokuvamile itholakala phakathi kwethanga, kodwa ngenxa yenkululeko yayo yokuhamba kungenzeka ukuthi isuswe emgodini wesisu. 