Which would NOT be caused by a decrease in plasma Ca²⁺ levels in an otherwise normal person?

Question

Quizplus · Accepted Answer

A decrease in plasma Ca²⁺ levels would stimulate an increase in parathyroid hormone secretion and an increase in plasma 1,25-dihydroxyvitamin D₃ levels, both of which act to increase Ca²⁺ levels by increasing Ca²⁺ absorption from the gut and reabsorption from the kidneys. It would also lead to an increase in nerve and muscle excitability, as Ca²⁺ plays a role in regulating these functions. Additionally, a decrease in plasma Ca²⁺ levels would lead to a decrease in the filtered load of Ca²⁺, as less Ca²⁺ would be able to be filtered by the kidneys. However, it would not lead to an increase in bone density, as low Ca²⁺ levels stimulate bone resorption, resulting in a decrease in bone density over time.

Which Would NOT Be Caused by a Decrease in Plasma