CELL MEDIATED IMAGE: in the cellular arm of the the adaptive (acquired) immune response, the destruction of infected or altered cells is done by Cytotoxix T-Cells, shown as purple spikey cells arcing at left of picture. The cell targeted for destruction is shown as a large green sphere at the bottom of the picture. This cell crumples and disintegrates and the cytotoxic cell leaves to attack further target cells. Antigen presentation is shown at the top of the picture where a green macrophage presents viral antigens to a helper T-Cell. The Helper T-Cell then releases cytokines that activate the cytotoxic T-Cells. A dendritic cell is shown at upper left.
August 8th, 2012
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