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NEETZoologyHuman Health and Diseases

Which of the following statements regarding disorders of the muscular and skeletal system is incorrect?

Options

  1. AMyasthenia gravis is an autoimmune disorder affecting the neuromuscular junction.
  2. BMuscular dystrophy is a progressive degeneration of skeletal muscle mostly due to genetic disorder.
  3. CGout is the inflammation of joints due to the accumulation of uric acid crystals.
  4. DTetany is characterized by rapid spasms in muscles due to high calcium ions in body fluid.

Correct answer

D. Tetany is characterized by rapid spasms in muscles due to high calcium ions in body fluid.

Step-by-step solution

The incorrect statement is the one describing tetany. According to NCERT, tetany is characterized by rapid spasms (wild contractions) in muscle due to low calcium ions ( Ca²⁺ ) in body fluid, not high calcium ions. Myasthenia gravis is correctly described as an autoimmune disorder affecting the neuromuscular junction. Muscular dystrophy is correctly defined as the progressive degeneration of skeletal muscle mostly due to genetic disorder. Gout is correctly described as the inflammation of joints due to the accumula

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