Na, Ka, Cl, Mg, value for the cell and the body?

1) Na – plays a role in the work of the heart and kidneys, and maintains the balance of acids and alkalis in the human body, and is also responsible for cationic, anionic, osmotic balances and for the conduct of nervous processes.

2) Ka – Perhaps you mean Ca (calcium). It is included in the basis of teeth and bones, and also activates the contraction of fibers in the muscles.

3) Cl – is included in the set of gastric juice, and also activates gastric juice, and is also responsible for cationic, anionic, osmotic balances and for the conduct of nervous processes.

4) Mg – is important for the activation of most enzymes and the work of the heart, and is also part of chlorophyll.