The modern idea about ageing is the that our body slowly loses the power of defence against the invasion of germs and pathogens. This process starts with the disappearance of which organ?
A
Spleen
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B
Thymus gland
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C
Pituitary gland
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D
Parathyroid gland
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Solution
The correct option is B Thymus gland The function of the thymus gland is to generate mature T lymphocytes. Most of the T lymphocytes are produced during the childhood itself. Over time, the thymus gland has no role to play in the body and hence is eventually replaced by adipose tissue.