More than one answer may apply. -PTH contributes to its regulation. A)Ca²⁺ homeostasis B)Ca²⁺ balance

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Quizplus · Accepted Answer

PTH (parathyroid hormone) plays a crucial role in regulating Ca2+, ^{2 (phosphate), and} (magnesium) homeostasis. PTH acts on the bones, kidneys, and intestine to increase Ca2+ and ^{2 blood levels while reducing} levels. Therefore, option A is the best choice as it correctly mentions the role of PTH in homeostasis regulation. Option B is not accurate because ^{2 and} are not in balance; they are distinct ions with different physiological roles that require separate regulation.

More Than One Answer May Apply