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Author Topic:   Improving on nature ... by design ...
Loudmouth
Inactive Member


Message 8 of 19 (120238)
06-30-2004 1:44 AM
Reply to: Message 7 by RAZD
06-30-2004 12:48 AM


quote:
Muscle action is electrical
Just a quick correction. Muscle contraction is driven by ATP, it is a chemical reaction. The contraction is stimulated by a release of ions from nerves. Although there is a voltage difference across the membrane, nerve impulses are actually driven by the release of positive ions as compared to electrical impulses which are travelling electrons. However, electrical currents can cause the release of these ions and mimic the effect of a nerve impulse. Just a pet peeve, but I hate it when people say that nerve impulses are electricity. If this were true then people would have to explain why nerve impulses only travel at 50-70 meters per second as compared to electricity which travels at 300,000,000 meters per second.

This message is a reply to:
 Message 7 by RAZD, posted 06-30-2004 12:48 AM RAZD has replied

Replies to this message:
 Message 9 by coffee_addict, posted 06-30-2004 1:57 AM Loudmouth has not replied
 Message 10 by Dr Jack, posted 06-30-2004 6:33 AM Loudmouth has not replied
 Message 11 by RAZD, posted 06-30-2004 9:09 AM Loudmouth has replied

  
Loudmouth
Inactive Member


Message 17 of 19 (120935)
07-01-2004 6:27 PM
Reply to: Message 11 by RAZD
06-30-2004 9:09 AM


quote:
a reason I said electrical rather than electricity.
Fair enough. Like I said, sometimes I get a little short when certain aspects of biology and physiology are misrepresented on a regular basis.

This message is a reply to:
 Message 11 by RAZD, posted 06-30-2004 9:09 AM RAZD has not replied

  
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