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Immune system

Immune system

P266/0060

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Credit

BSIP, JACOPIN / SCIENCE ET V / SCIENCE PHOTO LIBRARY BSIP, JACOPIN / SCIENCE ET V / SCIENCE PHOTO LIBRARY

Caption

Immunity. Artwork of the functioning of the body's immune defences. Invading pathogens like bacteria (upper left, orange) are digested by a white blood cell (dark blue, upper right). Protein antigens (orange spikes) are released and processed by other white blood cells. This process stimulates a B-cell to synthesise Y-shaped antibodies (pink, centre right) specific to the antigens. These are released and bind to the antigens on the bacteria, in a process known as opsonization. In this way the immune system labels the bacteria for engulfment and digestion by phagocytic white blood cells (centre left).

Release details

Model release not required. Property release not required.

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