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Calcium ion concentration in blood affe...

Calcium ion concentration in blood affects muscle contraction .Does it lead to tetany in certain cases ? How will you correlate fluctuation in blood calcium with tetany ?

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For muscle contraction opening of joining site of thin filament is essential when `ca^(2+)` ions joins along with other regulatory protein troponim form troponin complex . It regulates position of tropomyosin on thin filament union of `Ca^(2a)` re-arranges tropomysin -troponin complex , opening myosin linkge site on thin filament when `Ca^(2+)` is in cytosole , thin and thick filament slide over each other , result in muscle contraction .
When `Ca^(2+)` level decreases linkage surface covered contraction completed .
In tetany `Ca^(2+)` level decrease in body fluid - due to inactiveness of parathyroid gland . This gland secrete parathormone hormone which regulates ca level in blood . ,br> In tetany muscles are contracted /spasm and giddiness.
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