Question: 164: Which of the following is a correct match for disease and its symptoms?
(1) Myasthenia gravis – Genetic disorder resulting in weakening and paralysis of skeletal muscle
(2) Muscular dystrophy – An auto immune disorder causing progressive degeneration of skeletal muscle
(3) Arthritis – Inflammed joints
(4) Tetany – High \mathrm{Ca}^{2+} level causing rapid spasms.
Answer: Option (3)
Explanation:
Arthritis is a disorder characterised by inflammation of the joints, leading to pain, swelling, stiffness,
and reduced movement. Therefore, the match between arthritis and inflamed joints is correct.
Option (1) is incorrect because myasthenia gravis is an autoimmune disorder,
not a genetic disorder, and it causes muscle weakness due to impaired neuromuscular transmission.
Option (2) is incorrect because muscular dystrophy is a genetic disorder,
not an autoimmune disorder, and it leads to progressive degeneration of skeletal muscles.
Option (4) is incorrect because tetany is caused by low
\mathrm{Ca}^{2+} levels in the blood, not high calcium levels,
resulting in muscle spasms.
Hence, the correct match is arthritis with inflamed joints.