What are T cells? T cells (also called T lymphocytes) are a type of white blood cell and a part of the immune system. T cells come from hematopoietic stem cells found in the bone marrow. These cells are called stem cells because they give rise to all the cells in the blood and immune …
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What is a lymphocyte? A lymphocyte is a specialized type of immune cell and a type of white blood cell (WBC). Lymphocytes are responsible for protecting our body from infections and for helping us heal after an injury. Normal lymphocytes are small cells with a limited amount of cytoplasm (cell body) surrounding a dark round …
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