ANATOMY
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It makes T cells
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It makes B cells
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It makes tiny little soldiers
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It stops working as you age
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Detailed explanation-1: -The thymus is a primary lymphoid organ responsible for the production of immunocompetent T cells and, with aging, it atrophies and declines in functions. Universality of thymic involution in all species possessing thymus, including human, indicates it as a long-standing evolutionary event.
Detailed explanation-2: -A critical immune organ called the thymus shrinks rapidly with age, putting older individuals at greater risk for life-threatening infections. A new study reveals that thymus atrophy may stem from a decline in its ability to protect against DNA damage from free radicals.
Detailed explanation-3: -If the thymus does not work properly, we can end up with too few T cells to protect ourselves – this is called immunodeficiency – or we can produce T cells that attack our own body – which is called autoimmunity.
Detailed explanation-4: -Answer and Explanation: The correct answer is a. All of the given choices are true of the thymus gland, except that it activates B cells. The thymus gland is a small gland that produces T-cells and hormones, such as thymosin, which stimulate T-cell maturation.