tered, cleaned, humidified, warmed and purified of bacte-
ria. Indeed, these tiny hairs protect our bodies against
about 20 billion particles of foreign matter every day.
Twenty billion is about 3 times the world population.
It is quite a thorough process that the nose knows and by
which it distinguishes that many particles of foreign mat-
ter. Twenty billion particles of foreign matter cannot possi-
bly be recognised and hindered from passing through the
nose by chance. This clearly reveals the greatness of
Allah's power of creation. Some people, however, claim
93
gas
(smell)
gas
molecules
Olfactory nerve
olfactory tract
ethmoidal bone
olfactory cell
(sensory receptors)
cilia (tiny hairs)
Hairs lining the
nose act as an
air conditioner,
cleaning and
humidifying the
air we breathe
in. Thus, our
bodies are pro-
tected against
numerous mi-
crobes.
Olfactory area
