ZoologyWhich of the following diseases is an autoimmune disorder?

Which of the following diseases is an autoimmune disorder?

  1. A

    Myasthenia gravis

  2. B

    Arthritis

  3. C

    Osteoporosis

  4. D

    Gout

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    Solution:

    Autoimmune disorders occur when the immune system attacks self-antigens. Myasthenia gravis is an autoimmune disorder affecting neuromuscular junction leading to fatigue, weakening and paralysis of skeletal muscle. The self-antibodies bind to ACh receptors at the NMJ due to which acetylcholine released from the motor neurons cannot cause muscle contraction.

    Arthritis is inflammation of joints.

    Osteoporosis is a age-related disorder caused due to deficiency of oestrogen.

    Gout is caused due to accumulation of uric acid crystals in the joints.

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