Macrophage: a large whit blood cell that consumes foreign invaders. Helps to destroy bacteria and tumor cells.
Antigen: any type of foreign substance that enters the body.
Helper T Cell: White blood cells which release cytokines that activate B and killer T cells.
B Cell: In the Pressence of antigens lymphocyte turns into plasmas and release antibodies to help fight.
Antibody: Proteins that binds to an antigen, which neutralizes it.
Killer Cell: Destroy the antigens that have been discovered by antibodies.
Cytotoxic T Cell: A type of T cell which kills cells that have come incontact (infected) with viruses.
Memory Cell: Long living lymphocyte that has previously encountered an antigen.
Immune Disorders
Leukopenia: a decrease in white blood cells (leukocytes) found in the blood, which leaves the person at an increased rate of infection.
Hypersensitivity: undesirable/damaging/ discomforting reaction produced by the immune system. Hypersensitivity reactions need a pre-sensitized (immune) state of the host.
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