question on nerve polarity

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From: Steve Miller (nanodog2@hotmail.com)
Date: Wed Jun 15 2005 - 19:07:18 PDT 

Message-ID: <BAY102-F2632356DCC951B63359569FF50@phx.gbl>
From: "Steve Miller" <nanodog2@hotmail.com>
Subject: question on nerve polarity
Date: Wed, 15 Jun 2005 19:07:18 -0700

I have been wondering about what happens to nerve polarity when adrenalin -
and related adrenal hormones - hit the nervous system.

We all have experienced the physical rush, generally called the fight or
flight syndrome. When startled, we can react extremely quickly. Adrenal
hormones are released into the blood from the adrenal glands sitting on top
of the kidneys. But it takes time for the blood to circulate, and we respond
almost instantly.

So what happens? Do the hormones quickly hit the spinal cord, or some major
nerve plexus to provide the ability to move? When they do hit the nerve, do
they interact with the nerve to trigger a faster response? Is this
interaction based on altering the nerve polarity? Perhaps by providing a
greater voltage at one end? Do the hormones alter how the nerve signal is
propagated?

Just wondering.

Steven Miller

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