Incazelo yesichazamazwi yegama elithi "udoti womzimba" isho noma iyiphi into noma into ekhiqizwa noma ekhishwa umzimba womuntu ngenxa yezinqubo ze-metabolic futhi engasadingeki noma ingasasebenziseki emzimbeni. Lokhu kungabandakanya izinhlobo ezahlukene zemfucuza njengomchamo, indle, umjuluko, nolunye uketshezi lomzimba. Lezi zimfucumfucu ngokuvamile zikhishwa emzimbeni ngezitho ezihlukahlukene ezikhipha indle njengezinso, isibindi, nesikhumba.