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question 17

Essay

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Definitions:

Body Defences

The inherent systems and mechanisms in the body designed to protect against disease, injury, and foreign invaders.

Interferon

A protein released by cells, usually in response to the entry of a virus, that has the property of inhibiting virus replication.

Phagocyte

A type of cell within the body capable of engulfing and absorbing bacteria and other small cells and particles.

Sterile Dressing

The application of a sterile covering over a wound to promote healing and protect the site from infection.