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Cellular response

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    In cellular response what is the role of helper T cells,cytotoxic T cells, B cells and phagocytes. I'm really confused with this

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    Just quoting in Puddles the Monkey so she can move the thread if needed
    (Original post by Puddles the Monkey)

    (Original post by Sparky2016)
    In cellular response what is the role of helper T cells,cytotoxic T cells, B cells and phagocytes. I'm really confused with this
    Im assuming that you already know phagocytocis. If not, let me know.

    T cells

    Lets go through T helper cells first.
    Role of T helper cells: (summary)
    •Producing antibodies against an antigen on a particular pathogen.
    •Produces cytokines that activate B cells. B cells in turn are involved in antibody production
    •Involved in activating T killer cells. T killer cells destroy cells which are already infected.Explained in detail:

    T killer cells
    Destroy cells which are already infected.

    B cells

    a) B effector cells - differentiate to form plasma cells. Plasma cells can produce large amounts of antibodies. It can do this as it has an abundance of ribosomes and a long endoplasmic reticulum.

    b) B memory cells - Allows the body to respond to very rapidly to a second invasion by the same antigen.


    After phagocytocis, antigens are removed from a pathogen. The separation of antigen from the pathogen is known as antigen processing. Inside the macrophage, the antigen combines with a Major Histocompatability (MHC) Protein to form a complex. The complex makes its way to the cell surface of the macrophage. The Macrophage is now known as an antigen presenting cell (APC). When a T helper cell binds to an APC, cytokines are released which make B cells
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