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  1. Parathormone deficiency produces muscle ramps or tetany as a result of
    1. lowered blood Ca2+
    2. enhanced blood Na+
    3. enhanced blood glucose
    4. enhanced blood Ca2+
Correct Option: A

Parathormone released by the parathyroid gland elevates the level of Ca2+ in blood. The deficiency of this hormone lowers blood Ca2+. As a result, the excitability of muscles and nerves increases causing tetany -sustained contraction.



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