Homeostasis comprises the
by which the maintains
adequate intra extracellular
conditions to possible the normal
of the metabolism.

sensors are structures
detect information from inner and
outer of the body.
sensors may be receptor cells,
cytoplasmic membrane proteins and
specialized molecules. Controllers
structures responsible for
and interpreting information
from the sensors. in general
are regions of the
nervous system but the molecular
level are also some them, like
DNA, molecule that can
information from proteins inhibit or
stimulate expression of some .
Effectors are elements by
the controllers have the function
bringing about actions in fact
regulate maintain the equilibrium
the organism, like , glands,
cellular organelles, ., and in the
level structures that
in the genetic ,
the produced proteins, .