What Are Lymphocytes?
Lymphocytes are a type of white blood cells that are the smallest white blood cells. It is produced by lymphoid organs and mainly exists in the lymph fluid circulating in the lymphatic vessels. It is an important cellular component of the body's immune response function. It is the main executor of almost all immune functions of the lymphatic system. Frontline "soldier". Lymphocytes are a type of cell line with immune recognition function. They can be divided into T lymphocytes (also known as T cells), B lymphocytes (also known as B cells) and natural killer according to their migration, surface molecules and functions. (NK) cells. T cells and B cells are both antigen-specific lymphocytes, and their original source is the same, both from hematopoietic tissue [1] .
- Lymphocyte percentage (LYMPH%): 0.20 to 0.40 (20% to 40%).
- Lymphocyte absolute value (LYMPH #): 0.8 3.5 × 10 * 9 / L [4] .
- Lymphocytes are at the heart of the immune response. According to the different sources of lymphocytes, morphology, surface markers and immune functions, they can be divided into three types: T cells, B cells and NK cells. [3]