Lymphocytes 中文

Lymphocytosis lim-foe-sie-TOE-sisalso known as a high lymphocyte count, lymphocytes 中文, is an increase in white blood cells called lymphocytes. Lymphocytes help fight off diseases. It's typical for the lymphocyte count to rise briefly after an infection.

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Lymphocytes 中文

A lymphocyte is a type of white blood cell leukocyte in the immune system of most vertebrates. They are the main type of cell found in lymph , which prompted the name "lymphocyte" with cyte meaning cell. The three major types of lymphocyte are T cells , B cells and natural killer NK cells. T cells thymus cells and B cells bone marrow - or bursa -derived cells [a] are the major cellular components of the adaptive immune response. T cells are involved in cell-mediated immunity , whereas B cells are primarily responsible for humoral immunity relating to antibodies. The function of T cells and B cells is to recognize specific "non-self" antigens, during a process known as antigen presentation. Once they have identified an invader, the cells generate specific responses that are tailored maximally to eliminate specific pathogens or pathogen-infected cells. B cells respond to pathogens by producing large quantities of antibodies which then neutralize foreign objects like bacteria and viruses. In response to pathogens some T cells, called T helper cells , produce cytokines that direct the immune response, while other T cells, called cytotoxic T cells , produce toxic granules that contain powerful enzymes which induce the death of pathogen-infected cells. Following activation, B cells and T cells leave a lasting legacy of the antigens they have encountered, in the form of memory cells.

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Lymphocytes are a type of white blood cell. They play a key role in your immune system by helping your body fight infection and disease. High or low lymphocyte levels can indicate a problem with your immune system. Some levels of lymphocytes can be dangerous and indicate a chronic condition. Lymphocyte counts can be temporarily high when your body fights an infection. Chronic high or low lymphocyte levels can indicate an underlying problem with your immune system and possibly even cancer.

Lymphocytes 中文

Federal government websites often end in. Before sharing sensitive information, make sure you're on a federal government site. The site is secure. NCBI Bookshelf. Molecular Biology of the Cell. New York: Garland Science; Lymphocytes are responsible for the astonishing specificity of adaptive immune responses.

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Middleton's Allergy: Principles and Practice 8th ed. Mayo Clinic; Hindi to English. Wikimedia Commons has media related to Lymphocytes. Refer a Patient. Refer a Patient. Heart diseases Treatments of lymphoma such as chemotherapy and radiation therapy can lead to heart complications. To learn more about our GDPR policies click here. Follow us. See more. For instance, radiotherapy and a chemotherapy drug called bleomycin can lead to scarring of the lungs. See the definition of lymphocyte in the English dictionary. Media Requests.

A lymphocyte is a type of white blood cell leukocyte in the immune system of most vertebrates. They are the main type of cell found in lymph , which prompted the name "lymphocyte" with cyte meaning cell. The three major types of lymphocyte are T cells , B cells and natural killer NK cells.

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