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Stories about: sodium channels

Sodium Channels Evolved Before Nervous Systems Scientists in the United States have recently determined the answer to an ages-old question – which came first, the animal nervous system or its components? Experts in Texas say that indeed at least one of the vital components in the animal nervous system developed ahead of the larger structure did.In a series ... 18 May 2011 06:00 GMT Electric Fish Have Energy-Saving 'Switches' A fairly big number of fish species, including eels and sharks, has the ability to generate and discharge electrical currents in the water around. The ability is used either to stun prey, or for defensive purposes, depending on the situation. Now, a new study has revealed that some of these species are also equipped ... 29 September 2009 02:42 GMT