Potassium, magnesium, and phosphate ions are the predominant electrolytes ina. plasma,b. interstitial fluid,c. intracellular fluid.

When the concentration of Na⁺ in the ECF decreases, __________.

The only cation exerting significant osmotic pressure in the ECF is __________.

Electrolyte balance in the body usually refers to the balance of __________.

When atrial natriuretic peptide is released by the heart because of increased blood pressure, it causes __________.

Sodium balance is regulated primarily by control of amount(s)a. ingested,b. excreted in urine,c. lost in perspiration,d. lost in feces.

Answer questions 5 through 10 by choosing responses from the following:a. ammonium ionsb. bicarbonatec. calciumd. chloridee. hydrogen ionsf. magnesiumg. phosphateh. potassiumi. sodiumj. waterTwo main substances regulated by the influence of aldosterone on the kidney tubules.

Explain why and how total body sodium content, ECF volume, and blood pressure are jointly regulated.

Explain how Na ⁺ balance, ECF volume, and blood pressure are jointly regulated.