lümfotsüütidele

Lümfotsüütidele are a type of white blood cell that play a crucial role in the immune system. They are a key component of the adaptive immune response, which allows the body to recognize and remember specific pathogens, mounting a targeted defense against them. There are three main types of lymphocytes: B cells, T cells, and natural killer (NK) cells. B cells are responsible for producing antibodies, which are proteins that bind to foreign substances like bacteria and viruses, marking them for destruction. T cells are involved in cell-mediated immunity. Helper T cells assist B cells in antibody production and activate other immune cells, while cytotoxic T cells directly kill infected or cancerous cells. Natural killer cells, although also lymphocytes, are part of the innate immune system. They can recognize and kill abnormal cells, such as tumor cells or virus-infected cells, without prior sensitization. Lümfotsüütidele are produced in the bone marrow and mature in lymphoid organs such as the thymus, spleen, and lymph nodes. Their numbers can fluctuate depending on the presence of infection or disease, and their analysis is often part of routine blood tests to assess immune function and diagnose various conditions.