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Guilherme Mazui

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What is the Difference Between Lymphocytes and Leucocytes?

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The main difference between lymphocytes and leukocytes lies in their classification and function within the immune system. Here are the key differences:

  • Classification: Leukocytes, also known as white blood cells, are the cells that make up the bulk of blood and help in killing foreign particles or pathogens. Lymphocytes, on the other hand, are a specific type of leukocyte. Therefore, all lymphocytes are leukocytes, but not all leukocytes are lymphocytes.
  • Origin: Leukocytes are produced by myeloid stem cells, while lymphocytes are produced by lymphoid stem cells.
  • Function: Leukocytes play a role in maintaining the innate immunity of humans, while lymphocytes are part of the adaptive immune system. Lymphocytes mainly constitute T cells, B cells, and natural killer (NK) cells, and their primary role is in the immune system.

To summarize:

Leukocyte Lymphocyte
Produced by myeloid stem cells Produced by lymphoid stem cells
Play a role in innate immunity Part of the adaptive immune system
Include neutrophils, basophils, eosinophils, monocytes, and lymphocytes Composed mainly of T cells, B cells, and NK cells
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  • What is the Difference Between Lymphocytes and Leucocytes?
  • Comparative Table: Lymphocytes vs Leucocytes

    • Comparative Table: Lymphocytes vs Leucocytes

    The main difference between lymphocytes and leukocytes (white blood cells) is that lymphocytes are a type of white blood cell, but not all white blood cells are lymphocytes. Here is a table comparing the differences between lymphocytes and leukocytes:

    Feature Lymphocytes Leukocytes (White Blood Cells)
    Definition Lymphocytes are a type of white blood cell Leukocytes are a type of blood cell that are colorless and circulate through the bloodstream
    Function Lymphocytes are responsible for cell-mediated immunity and antibody production Leukocytes play a crucial role in the immune system, defending the body against infections and foreign materials
    Subtypes T cells and B cells Neutrophils, eosinophils, basophils, monocytes, and mast cells
    Appearance Lymphocytes have a large nucleus surrounded by a small cytoplasm, usually without large granules Leukocytes can vary in appearance, with some containing granules in their cytoplasm
    Distribution Lymphocytes are primarily found in the lymphatic system, spleen, and bone marrow Leukocytes circulate in the blood and are produced in the bone marrow

    In summary, lymphocytes are a specific type of leukocyte that play a key role in the immune system, while leukocytes are a broader category of blood cells that include various cell types, such as neutrophils, eosinophils, and basophils. Both lymphocytes and leukocytes are essential components of the immune system, defending the body against infections and foreign materials.

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    Guilherme Mazui

    Guilherme Mazui is graduated in journalism from the Federal University of Minas Gerais (UFMG) and a master's degree in Communication from the University of São Paulo (USP). In addition, he has experience in advertising writing and has worked as a content editor in several companies.