| Students
will build models to explain a thrombus, embolus,
and hemorrhage. If you want to review these concepts
see the web
activity.
Healthy Artery Model-
clear plastic tubing-
pour red hots through the tubing and show how they
flow through easily.
(We poured the red hots out of
a glass with a heart on the outside to show that
the blood comes from the heart.
We put a mason jar with a brain on the outside of
it at the other end of the tube to show that the blood flowed
into the brain)
Unhealthy Artery-
show how plaque builds up on the inside of the
artery by placing a piece of red play-doh on the inside
near the end. Relate
it to plaque building up on their teeth.
Thrombus-
pour the red hots through again with the plaque already
in place and show how the red hots can't get through as
easily. We
used a big enough piece of play-doh so that the red hots
would get stuck and block the flow.
Embolus-
We used a Mentos (candy) as an embolus and showed
how it would get stuck in the tube and the blood
would build up behind it.
Hemorrhage-
We had another tube that we had cut a hole in and
asked the kids what they thought would happen if the
blood was poured into that tube.
"It will fall out"
"It won't get to the brain"
"The brain will die"
*During
all of these we ask the kids what they think will happen.
"The brain will die" is the most common
answer, but some will give different answers.
All
of these the strokes can lead to brain cell death.
This will cause areas of the brain to stop functioning. We then had a picture of the brain divided by different areas
of the brain in different colors.
We would talk about which areas are responsible for
which major functions like movement, vision, hearing.
Then
we explained to the kids that we were going to let them
have a brain attack.
But first we would count to three and have all the
kids yell "Brain Attack" as loud as they could.
|