heart is an important muscle. It is found in
your chest and is
size of our fist.
Your heart grows bigger
heart has a very important responsibility.
It's job is to
blood to your muscles
can listen to your
heart beat by taking you "pulse" at your
or your neck.
You can also feel it by placing your
hand over your chest, just above where it is
heart beats slowly when you sit, sleep
heart beats faster when you are active, move and play.