Types of Lymphocytes
1. B lymphocytes
2. T lymphocytes
3. Natural killar cells(NK Cells)
1. B lymphocytes (B cells)
B lymphocytes originate in bone marrow and colonize typhoid tissue.
When B cells are activated they enlarge and become plasma cells.
B cells and their derivative plasma cells are source of specific immunoglobulin antibodies.
So they are involved in humoral immunity or circulating immune reactions.
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