alleryRemoval of the parathyroid glands during a thyroidectomy lowers parathormone and produces sustained muscle contractions known as:
ATetany
BAcromegaly
CCretinism
DGlycosuria
Answer & Solution
Correct answer: A. Tetany
1. Parathormone regulates blood calcium by acting on bone, kidney and intestine.
2. If parathyroid glands are removed during thyroidectomy, parathormone falls.
3. Low calcium then causes sustained muscle contractions (face, larynx, hands, feet) called tetany.
4. Acromegaly is a GH disorder, cretinism is thyroid-linked, and glycosuria is glucose in urine, so they are ruled out.
_Source: Samacheer Kalvi (TN SCERT) Class 10 Science, Unit 16 Plant and Animal Hormones "Parathyroid Dysfunction", p.243_
Keep practising Unit 4A: Cell Communication & Signal Transduction
Browse all Unit 4A: Cell Communication & Signal Transduction questions for AP Biology, or explore more Biology topics.
Related questions
Excess production of growth hormone before adulthood mainly causes:A student is suddenly chased by a stray dog. The hormone that quickly readies the body forA child has been diagnosed with cretinism. The most likely cause is:A salivary gland is best classified as a / an:Hormones travel from an endocrine gland to their target organ through:Cortisone, a stress-management hormone, is secreted by the:Dwarfism results from the under-secretion of which hormone during childhood?Glucagon, also a pancreatic hormone, does the opposite of insulin. It: