Page 407 - Microsoft Word - LessonPlan-Overview.doc
P. 407
Unit 19: Biology Part 2 Page 62 of 137
mucus lines the lungs, making it
even harder to breathe.
People with asthma exercise, play
sports, and do most other
activities. They just need to make
sure they control their asthma, and
look out for things that might
trigger an attack. Some people
with this disease take medicines
Figure 43 – In both acute and called bronchodilators to open up
chronic bronchitis, the bronchi the bronchioles.
are inflamed.
Asthma
You probably know someone who
has asthma. Perhaps the person
with asthma has to be very careful
when doing very active things, or
avoid certain materials, like pet
hair, mold, or dust.
Asthma is a chronic disease caused
by an inflammation of the
bronchioles. People with asthma Figure 44 – During an asthma
can have an asthma attack attack, the bronchioles get
because of air that is warm, cool, inflamed, the muscles in the
or moist, exercise, stress, diseases bronchioles contract, and the
like the common cold, or some of lungs line with mucus.
the materials in the air mentioned
above, like pet hair, mold, or dust. Pneumonia
During an attack, not only do the Pneumonia occurs when the alveoli
bronchioles become inflamed, but become inflamed and full of fluid.
the muscles in the bronchioles This makes it impossible for gas
contract, making them even exchange to happen the way it
smaller. As if that wasn’t enough, should. As a result, people with
pneumonia have trouble breathing.
© 2011 Supercharged Science www.ScienceLearningSpace.com
809
