How is Sodium used in the body? I need to know this for some Food Tech reaserch. Thanks.

Thank you for using the Jiskha Homework Help Forum. The body uses sodium to regulate blood pressure and blood volume. Sodium is also critical for the functioning of muscles and nerves. ...

Since this is not my area of expertise, I searched Google under the key words "salt body health" to get these possible sources:

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http://www.mayoclinic.com/health/sodium/NU00284
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http://news.bbc.co.uk/1/hi/health/medical_notes/393201.stm

I hope this helps a little more. Thanks for asking.