The Major cation in ECF

NEET PG Physiology
#1

Major cation in ECF

    1. Na+
    1. K+
    1. Ca++
    1. Mg++

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Predominant Ions

ECF- Na+, Cl-, HCO3-, Ca+2

ICF- K+, Mg+2, protein, PO4-

Na+ is the major cation in ECF.