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  2. Peripheral blood lymphocyte - Wikipedia

    en.wikipedia.org/wiki/Peripheral_blood_lymphocyte

    Peripheral blood lymphocytes (PBLs) are mature lymphocytes that circulate in the blood, rather than localizing to organs (such as the spleen or lymph nodes). [1] They comprise T cells , NK cells and B cells .

  3. CD4+/CD8+ ratio - Wikipedia

    en.wikipedia.org/wiki/CD4+/CD8+_ratio

    Both CD4 + and CD8 + T cells contain several subsets. [1] The CD4 + /CD8 + ratio in the peripheral blood of healthy adults and mice is about 2:1, and an altered ratio can indicate diseases relating to immunodeficiency or autoimmunity. [2] An inverted CD4 + /CD8 + ratio (namely, less than 1/1) indicates an impaired immune system.

  4. Lymphocyte - Wikipedia

    en.wikipedia.org/wiki/Lymphocyte

    A lymphocyte is a type of white blood cell (leukocyte) in the immune system of most vertebrates. [1] Lymphocytes include T cells (for cell-mediated and cytotoxic adaptive immunity), B cells (for humoral, antibody-driven adaptive immunity), [2] [3] and innate lymphoid cells (ILCs; "innate T cell-like" cells involved in mucosal immunity and homeostasis), of which natural killer cells are an ...

  5. Lymphopoiesis - Wikipedia

    en.wikipedia.org/wiki/Lymphopoiesis

    Scientists have identified hundreds or thousands of lymphocyte cell types, all of which are generated by normal or abnormal lymphopoiesis, except for certain artificial strains created in laboratories through the development of existing strains. Although lymphocytes are usually considered mature, as seen in blood tests, they are certainly not ...

  6. White blood cell differential - Wikipedia

    en.wikipedia.org/wiki/White_blood_cell_differential

    A white blood cell differential is a medical laboratory test that provides information about the types and amounts of white blood cells in a person's blood. The test, which is usually ordered as part of a complete blood count (CBC), measures the amounts of the five normal white blood cell types – neutrophils, lymphocytes, monocytes, eosinophils and basophils – as well as abnormal cell ...

  7. List of immune cells - Wikipedia

    en.wikipedia.org/wiki/List_of_immune_cells

    This is a list of [[White blood cell|immune cell], also known as white blood cells, white cells, leukocytes, or leucocytes. They are cells involved in protecting the body against both infectious disease and foreign invaders .

  8. Lymphoblast - Wikipedia

    en.wikipedia.org/wiki/Lymphoblast

    Lymphoblasts can also refer to immature cells which typically differentiate to form mature lymphocytes. [2] Normally, lymphoblasts are found in the bone marrow, but in acute lymphoblastic leukemia (ALL), lymphoblasts proliferate uncontrollably and are found in large numbers in the peripheral blood. The size is between 10 and 20 μm. [3]

  9. Reference ranges for blood tests - Wikipedia

    en.wikipedia.org/wiki/Reference_ranges_for_blood...

    Reference ranges (reference intervals) for blood tests are sets of values used by a health professional to interpret a set of medical test results from blood samples. Reference ranges for blood tests are studied within the field of clinical chemistry (also known as "clinical biochemistry", "chemical pathology" or "pure blood chemistry"), the ...