SORU: aşağıdaki parçaya göre cevaplayınız
The results of the experiment described in the passage suggest that ----.
in this experiment, patients were placed into a
refrigerated chamber for several minutes, and
measurements were taken of both their lung
capacity and the temperature within their trachea.
On one of the experimental study days, the
subjects were asked to breathe entirely through
their nose; on the other, their nose was clipped
tightly and they breathed through their mouth. The
patients' lung capacity dropped significantly on the
mouth-breathing day of the experiment; this
correlated highly with a significant cooling of the
trachea. On the day they breathed only through
their nose, however, their lower airway function
changed only minimally and their intra-tracheal
temperature remained close to normal. These
studies demonstrate that nasal breathing has an
important protective effect on the lower airways,
most likely because the nose is more effective at
warming and moisturizing inspired air before it
passes into the lungs. In addition, a nose that is
clear and free of inflammation is better able to
filter and remove airborne allergens and pollutants
than is the mouth.