Muscle tetany is due to

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hypersecretion of TSH

hyposecretion of TCT

hypersecretion of PTH

hyposecretion of PTH

answer is D.

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Detailed Solution

Tetany refers to rapid spasms (wild contractions) in muscle due to low Ca⁺⁺ in body fluids. PTH is the hypercalcemic hormone and increases blood calcium levels. Decrease in PTH secretion would decrease blood calcium levels leading to tetany. Thyrocalcitonin (TCT) is a hypocalcemic hormone. Its deficiency will lead to an increase in blood calcium levels.

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