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Question

Damage to the thymus in a child may lead to:


A

Loss of antibody-mediated immunity

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B

A reduction in haemoglobin content of blood

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C

Loss of cell-mediated immunity

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D

A reduction in stem cell production

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Solution

The thymus gland is located in the chest, behind the sternum. T-cells are produced in the bone marrow. These cells migrate to the thymus. The thymus gland is responsible for the differentiation and maturity of the T-cells. These mature T-cells are released into the bloodstream to fight against infections. The T-cells work in coordination with the B-cells to destroy the bacteria, viruses, and other foreign antigens. If any damage is caused to the thymus during childhood may cause a lack or less number of mature T-cells. This will cause the child to become more prone to infections. Thus, there will be a lack or loss of cell-mediated immunity provided by the T-cells.

So, the correct answer is option C.


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