- A human body has an inbuilt immune system comprising of different parts which work together by defending against the disease-causing microorganism. Hence it is referred to as the body’s best defensive system. This system functions against infringing microorganisms and keeps us healthy. Sometimes foreign materials, manage to invade successfully. When this happens, the body depends on the immune system for a response. This system functions in several ways:
- The thymus gland, tissues of the bone marrow, the spleen and the lymph nodes synthesize white blood cells (WBC’s) that are specialized cells, functions by destroying foreign organisms.
- The white blood cells synthesize -A nonspecific response to injury or infection and proteins known as antibodies that are part of a particular immune response to foreign particles.
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