Answer:
Sodium helps to maintain the normal plasma osmolarity as well as blood pressure.
Explanation:
The given points that can be applied for maintaining electroneutrality is
1 low sodium stimulates the secretion of aldosterone .
2 regulates plasma osmolarity
low sodium stimulates the secretion of aldosterone from the adrenal cortex that boost the reabsorption of Na+ ions from the glomerular filtrate
Maintaining electronutrality is the other meaning regulating plasma osmolarity.