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Sodium

• FUNCTIONS:

  • Principle cation in extracellular fluids
  • Regulates plasma fluid volume
  • Acid-base balance
  • Important role in nerve and muscle function
  • Na⁺/K⁺-ATPase

• DEFICIENCIES:

• DIETARY SOURCES - dietary sources which are rich in sodium:
  • "Table" salt (NaCl)