SCIENCE
ENDOCRINE GLANDS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Thyroid
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Thymus
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Adrenals
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Pituitary
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Detailed explanation-1: -After puberty, your thymus gland slowly starts to decrease in size and is replaced by fat.
Detailed explanation-2: -The thymus is at its largest and most active during the neonatal and pre-adolescent periods. After this period the organ gradually disappears and is replaced by fat.
Detailed explanation-3: -The thymus is a vital yet unusual organ. Vital in that it is responsible for producing immune cells; unusual in that it is largest at childhood and progressively shrinks after puberty.
Detailed explanation-4: -In the thymus they undergo a process of maturation, which involves ensuring the cells react against antigens ("positive selection"), but that they do not react against antigens found on body tissue ("negative selection"). Once mature, T cells emigrate from the thymus to provide vital functions in the immune system.