When Blood Ca²⁺ Levels Fall Below Normal,in What Ways Do

question 83

Multiple Choice

When blood Ca²⁺ levels fall below normal,in what ways do the kidneys help restore them toward normal?

• A)By increasing 1,25-dihydroxyvitamin D₃ formation,decreasing tubular phosphate reabsorption,and increasing tubular Ca²⁺ reabsorption
• B)By increasing 1,25-dihydroxyvitamin D₃ formation,increasing tubular phosphate reabsorption,and increasing tubular Ca²⁺ reabsorption
• C)By decreasing 1,25-dihydroxyvitamin D₃ formation,increasing tubular phosphate reabsorption,and increasing tubular Ca²⁺ reabsorption
• D)Increasing 1,25-dihydroxyvitamin D₃ formation and increasing secretion of parathyroid hormone
• E)By increasing renal secretion of parathyroid hormone and increasing bone resorption

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Definitions:

Operant Conditioning

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A theory of learning that posits people can learn new behaviors and norms through observing, imitating, and being reinforced by others.

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A cognitive-behavioral therapy technique teaching individuals to cope with stress by preparing them in advance to handle stressful situations effectively.

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