The concentration of sodium and potassium ions in the blood and fluid is regulated by hormones known as 04:23 Endocrine System The concentration of sodium and potassium ions in the blood and fluid is regulated by hormones known as (A) glucocorticoids (B) androgens (C) adrenergic hormones (D) mineralocorticoids Answer: D Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+