The Body's Electrical System
We tend to think of electricity as a harmful force to our bodies. If
lightning strikes you or you stick your finger in an electrical outlet, the
current can maim or even kill you. But in smaller doses, electricity is
harmless. In fact, it is one of the most essential elements in your
body. You need electricity to do just about anything.
When you want to make a sandwich, for example,
your brain sends electricity down a nerve cell, toward the muscles in your
arm. The electrical signal tells the nerve cell to release a
neurotransmitter, a communication chemical, to the muscle cells. This
tells the muscles to contract or expand in just the right way to put your
sandwich together. When you pick up the sandwich, the sensitive nerve cells
in your hand send an electrical message to the brain, telling you what the
sandwich feels like. When you bite into it, your mouth sends signals to your
brain to tell you how it tastes.
There are a wide range of stun weapons in use today.
The three most popular devices, the standard handheld stun gun, the Taser
gun and the liquid stun gun, all have advantages and
disadvantages.
In this way, the different parts of your body use electricity to
communicate with one another. This is actually a lot like a telephone
system or the Internet. Specific patterns of electricity are transmitted over
lines to deliver recognizable messages.
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