HISTOLOGY
LYMPHOID TISSUE
| Question 
 [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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|  |  B cells 
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|  |  T cells 
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|  |  Both B&T 
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|  |  None of these 
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Detailed explanation-1: -T cells are one of two primary types of lymphocytes-B cells being the second type-that determine the specificity of immune response to antigens (foreign substances) in the body. T cells originate in the bone marrow and mature in the thymus.
Detailed explanation-2: -The developing progenitors within the thymus, also known as thymocytes, undergo a series of maturation steps that can be identified based on the expression of different cell surface markers. The majority of cells in the thymus give rise to T cells, however approximately 5% bear the T cell receptor (TCR).
Detailed explanation-3: -The 3 types of lymphocytes are B cells, T cells and natural killer (NK) cells. and fat tissue. The thymus changes in size as you get older.