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Transcript
Respiratory System
Function of the Lungs


Supplies oxygen to the
blood by inhaling. This
oxygen is then carried
to all the cells of the
body.
Removes carbon
dioxide (a waste gas)
from the cells and
release it outside the
body. This is done
when you exhale.
Facts about the lungs
 In the cells the oxygen
being delivered
combines with nutrients
to provide energy that
the cells can use.
 The carbon dioxide that
you breathe out is
absorbed by the plants
and converted back into
oxygen.
What makes up the
respiratory system?
 Trachea: Windpipe that
directs air to the lungs
 Bronchi: passages
through which air enters
the lungs
 Alveoli: microscopic air
sacs in the lungs
 Diaphragm: a dome
shaped muscle that
separates the lungs from
the abdomen
Problems
 Bronchitis: swelling of
the bronchi causing
coughing, fever, and
chest tightness.
 Asthma: an inflammatory
disease that causes the
bronchi to become
blocked or narrowed.
 Pneumonia: is a lung
infection caused by
viruses or bacteria.
Problems
 Emphysema: a
disease in which the
alveoli are damaged
or destroyed.
 Lung Cancer: a
disease in which
tissues of the lung
are destroyed by the
growth of a tumor.
Caring for your lungs
 Stay Active: regular
activity strengthens your
lungs and helps keep
parts of the respiratory
clear. It also strengthens
your diaphragm.
 Avoid smoking and
secondhand smoke: All
types of tobacco
increase your risk of
respiratory diseases.
Healthy Vs. sick