ANATOMY
LYMPHATIC SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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it gets bigger
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it becomes more active
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it begins to shrink
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it stops working
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Detailed explanation-1: -Your thymus actually starts making T-cells before you’re born. It keeps producing T-cells and you have all the T-cells you need by the time you reach puberty. After puberty, your thymus gland slowly starts to decrease in size and is replaced by fat.
Detailed explanation-2: -Viral, bacterial, and fungal infections are common causes of acute thymic atrophy. Of particular concern is the human immunodeficiency virus (HIV), which can cause an infection that severely alters the normal function of the thymus as a result of the loss of developing thymocytes and thymic stromal cells.
Detailed explanation-3: -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.