Underactivity of parathyroid gland leads to:
Correct answer: D. Muscular tetany
- A. Diabetes
- B. Dwarfism
- C. Kidney stones
- D. Muscular tetany
Explanation
Hypoparathyroidism causes decreased PTH secretion → low blood calcium → increased excitability of nerves and muscles → painful spasms (tetany).
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Chemical coordination uses hormones released by endocrine glands and carried in blood to specific target cells. Coverage includes the pituitary, thyroid, pancreas, adrenal glands, ovaries and testes, feedback control, and the contrast between slower, longer-lasting hormonal responses and rapid nervous coordination.
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