enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Immune system - Wikipedia

    en.wikipedia.org/wiki/Immune_system

    The immune system is a network of biological systems that protects an organism ... Immunology is a science that examines the structure and function of the immune system.

  3. CD4 - Wikipedia

    en.wikipedia.org/wiki/CD4

    CD4+ T helper cells are white blood cells that are an essential part of the human immune system. They are often referred to as CD4 cells, T helper cells or T4 cells. They are called helper cells because one of their main roles is to send signals to other types of immune cells, including CD8 killer cells, which then destroy the infectious ...

  4. Outline of immunology - Wikipedia

    en.wikipedia.org/wiki/Outline_of_immunology

    The following outline is provided as an overview of and topical guide to immunology: . Immunology – study of all aspects of the immune system in all organisms. [1] It deals with the physiological functioning of the immune system in states of both health and disease; malfunctions of the immune system in immunological disorders (autoimmune diseases, hypersensitivities, immune deficiency ...

  5. Innate immune system - Wikipedia

    en.wikipedia.org/wiki/Innate_immune_system

    The innate immune system or nonspecific immune system [1] is one of the two main immunity strategies in vertebrates (the other being the adaptive immune system). The innate immune system is an alternate defense strategy and is the dominant immune system response found in plants, fungi, prokaryotes, and invertebrates (see Beyond vertebrates). [2 ...

  6. Antibody - Wikipedia

    en.wikipedia.org/wiki/Antibody

    To allow the immune system to recognize millions of different antigens, the antigen-binding sites at both tips of the antibody come in an equally wide variety. The rest of the antibody structure is much less variable; in humans, antibodies occur in five classes, sometimes called isotypes: IgA, IgD, IgE, IgG, and IgM. Human IgG and IgA ...

  7. Immunoglobulin G - Wikipedia

    en.wikipedia.org/wiki/Immunoglobulin_G

    Along with IgA secreted in the breast milk, residual IgG absorbed through the placenta provides the neonate with humoral immunity before its own immune system develops. Colostrum contains a high percentage of IgG, especially bovine colostrum. In individuals with prior immunity to a pathogen, IgG appears about 24–48 hours after antigenic ...

  8. Immunology - Wikipedia

    en.wikipedia.org/wiki/Immunology

    Immunology is a branch of biology and medicine [1] that covers the study of immune systems [2] in all organisms.. Immunology charts, measures, and contextualizes the physiological functioning of the immune system in states of both health and diseases; malfunctions of the immune system in immunological disorders (such as autoimmune diseases, hypersensitivities, [3] immune deficiency, [4] and ...

  9. Thymus - Wikipedia

    en.wikipedia.org/wiki/Thymus

    The thymus (pl.: thymuses or thymi) is a specialized primary lymphoid organ of the immune system.Within the thymus, thymus cell lymphocytes or T cells mature. T cells are critical to the adaptive immune system, where the body adapts to specific foreign invaders.