Umdidi
Umdidi uyingxenye yokugcina eqondile yamathumbu amakhulu kubantu nakwezinye izilwane ezincelisayo, kanye nesisu kwezinye. Ngaphambi indle kokukhipha ngengquza noma upitini, umdidi ugcina indle okwesikhashana. Umdidi womuntu omdala ungaba amasentimitha ali-12 ubude, [1] futhi uqala endaweni yokuhlangana kwe-rectosigmoid (ekugcineni komtshazo ogoncizayo ) ezingeni le-vertebra yesithathu ye-sacral noma i-promontory ye-sacral kuye ngokuthi iyiphi incazelo esetshenziswayo. Ububanzi bayo bufana nobomtshazo ogoncizayo ekuqaleni kwayo, kodwa ikhula eduze kokuphela kwayo, yakha i -ampulla ye-rectal . [2] Iphela ezingeni lendandatho ye-anorectal (izinga le- puborectalis sling) noma umugqa wamazinyo, futhi kuye ngokuthi iyiphi incazelo esetshenziswayo. [3] Kubantu, umdidi ulandelwa umsele wengquza, ongaba amasentimitha amane. isikhathi eside, ngaphambi kokuba umgudu wokugaya ukudla uphele emphethweni wengquza.