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  1. Lymphocytes: Function, Definition, Levels & Ranges

    Jun 20, 2022 · What do lymphocytes do? Lymphocytes help your body’s immune system fight cancer and foreign viruses and bacteria (antigens). Lymphocytes help your immune system remember every …

  2. 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 (for …

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

    Dec 5, 2025 · What is the primary function of lymphocytes? Lymphocytes determine the specificity of the immune response to infectious microorganisms and other foreign substances.

  4. 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 leukemia.

  5. 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.

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

    Dec 6, 2025 · Lymphocytes are white blood cells that play an essential role in combating infections. These cells recognize and attack bacteria, viruses, and fungi.

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

    Sep 10, 2024 · Lymphocytes: Key players in the immune response. Learn about their function & role in cancer, allergies, and autoimmune diseases.

  8. Lymphocytes: Levels, ranges, and functions - Medical News Today

    Mar 31, 2025 · Lymphocytes are white blood cells that help the body fight infection and disease. The healthy range for an adult is between 1,000 and 4,800 lymphocytes per microliter (µL) of blood.

  9. Lymphocyte Functions in Immune Response and Activation

    Nov 19, 2025 · These white blood cells originate from hematopoietic stem cells in the bone marrow and are responsible for the body’s ability to learn and remember past infections.

  10. What Is the Function of a Lymphocyte? - Biology Insights

    Aug 18, 2025 · Discover the vital role lymphocytes play in your body’s immune system, protecting you from disease and infection.