Excretion

Excretion, the excretion of endogenous or exogenous substances from the organism. Excretion occurs mainly through the kidney, but can also occur through liver, lungs, or exocrinee glandn (e.g. sweat glandn).

Der Nahrungsbrei wird bei der Defäkation über Rektum und Anus ausgeschieden.

https://de.wikipedia.org/wiki/Exkretion _{(Wikipedia CC-by-sa-3.0)}