Is Sodium the most important of the alkaline elements?

Of all the alkaline elements of the body, sodium is the most important. Sodium is found in every cell of the body. In addition there are large concentrated sodium-storage centers to be used in case of emergency. Among the important sodium-storage reservoirs are the muscles, brain and nerves, bone marrow, skin, gastric and intestinal mucosa, the kidneys and the liver, which is by far the most important. It is the richest of all the organs in sodium, its chief chemical element, as well as being the largest storehouse of sodium.