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  1. Lymphocytes: Function, Definition, Levels & Ranges

    Jun 20, 2022 · Lymphocytes are a type of white blood cell that are a part of your immune system. They help your body fight disease and infection.

  2. What Lymphocytes Do and What High and Low Levels Mean

    Dec 8, 2025 · Lymphocytes are white blood cells that help protect the body from infection and disease. High or low numbers of lymphocytes may signal an infection or a serious disease like …

  3. What level of lymphocytes is considered dangerous?

    Oct 11, 2024 · But what’s considered a “normal” range of lymphocytes? Does it mean you have cancer if they exceed or fall below a certain level? And, when should you see a doctor if …

  4. Lymphocytes: What's a Normal Count? - WebMD

    Sep 7, 2025 · Lymphocytes are a type of white blood cell that includes T, B, and natural killer cells. They help fight infection, destroy cancer cells, and control your allergic response.

  5. Lymphocytes: What Normal, Low & High Levels Mean

    Jan 5, 2022 · Lymphocytes are a type of white blood cell produced in the bone marrow. Learn what blood tests can show about lymphocyte levels, what's considered a normal range for …

  6. Lymphocyte - Wikipedia

    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 …

  7. Lymphocyte | Description, Types, & Functions | Britannica

    Dec 5, 2025 · lymphocyte, type of white blood cell (leukocyte) that is of fundamental importance in the immune system because lymphocytes are the cells that determine the specificity of the …

  8. Lymphocytes: Function, Types, and Counts - Health

    Dec 6, 2025 · There are three main types of lymphocytes: B cells, T cells, and natural killer (NK) cells. Each has a unique role in defending your body against infections and diseases.

  9. What Is a Lymphocyte? Definition, Types, Functions, and Where …

    Lymphocytes, like B cells, T cells, and natural killer cells, team up to defend us. By knowing how they work, we get a better picture of how our immune system keeps us healthy.

  10. Lymphocytes: Definition, Function & Causes of High and Low Count

    Sep 10, 2024 · There are three main types of lymphocytes: B cells: Produce antibodies to fight off infections. T cells: Directly attack infected or abnormal cells. Natural killer (NK) cells: Destroy …