Tuesday, January 19, 2010

Electrical Communication

Most electrical messages are carried by nerve cells (though heart cells also comunicate electrically) which are specialy adapted for carrying nerve impulses from one region of the body to another. for example some nerve fibres can be up to a metre in length. the main advantage of electrical communication is the speed at which information can be transmitted; some nerves are able to propagate nerve impulses at rates of one twenty meters per second furthermore, because the writing of neurones is very precise, information can be delivered to very specific locations.

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