Damaged white cells release histamines that cause arterioles to dilate and capillaries to become more permeable. Blood flow to the area increases and plasma, white blood cells and antibodies leak out into tissues.
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Lysosyme Action
An enzyme found in tears, sweat and the nose destroys bacteria by breaking down the bacterial cell walls.
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Interferon
A chemical released form cells which stop protein synthesesis inside virus infcted cells
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Phagocytosis
White blood cells which engulf and destroy phathogens. These phagocytes include neutrophils and monocytes (which become macrophages).
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