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Question
At what age does the thymus attain its maximum size?
At what age does the thymus attain its maximum size?
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Solution
The correct option is B During the first year of birth
Lymphoid organs are the organs or parts of tissues, in which lymphocytes can differentiate (immature cells develop individual characteristics) and proliferate (increase in the number of cells).
The thymus is a flat, bilobed lymphoid organ situated above the heart beneath the breast bone. Each lobe is divided into two compartments namely cortex (outer compartment) and medulla (the inner compartment).
The unusual part about this organ is that it is largest in size at the time of birth and decreases in size after puberty. Hence option b is correct and option a, c and d are incorrect.
Thymus helps in the maturation and selection of T-lymphocytes by providing them with the proper micro-environment. T-lymphocytes are the major effectors of cell-mediated immunity.
Figure : Thymus
Lymphoid organs are the organs or parts of tissues, in which lymphocytes can differentiate (immature cells develop individual characteristics) and proliferate (increase in the number of cells).
The thymus is a flat, bilobed lymphoid organ situated above the heart beneath the breast bone. Each lobe is divided into two compartments namely cortex (outer compartment) and medulla (the inner compartment).
The unusual part about this organ is that it is largest in size at the time of birth and decreases in size after puberty. Hence option b is correct and option a, c and d are incorrect.
Thymus helps in the maturation and selection of T-lymphocytes by providing them with the proper micro-environment. T-lymphocytes are the major effectors of cell-mediated immunity.
Figure : ThymusSuggest Corrections
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