
§
Provides the saliva which
allows to swallow the food;
§
Serves as a lubricant for the
joints and the eyes;
§
Maintains the temperature of
the body;
§
Allows the chemical reactions
in the cells;
§
Allows the absorption and
transport of nutrients ingested;
§
Allows the neurological
activity of the brain;
§
Ensures the hydration of the
skin;
§
Eliminates waste of digestion
and of various metabolic processes.