Immune System ch. 43.

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Presentation transcript:

Immune System ch. 43

Nonspecific Responses Plants Invertebrates Vertebrates

Vertebrates Macrophages A type of white blood cell that engulfs any pathogen

Specific Response Mammals

Cell Mediated Cytotoxic T Cells A type of white blood cell that searches for cells already infected with a pathogen and are presenting an antigen on the membrane to destroy

Humoral Response B cells A type of white blood cell that produces antibodies

Antibody A “Y” shaped protein with part of the pathogen attached

Contact Communication Helper T-cells A type of white blood cell that makes contact with a macrophage to detect the antigen Responds by activating B cells Macrophages Cytotoxic t cells

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