T Cells - Research Article from World of Biology

This encyclopedia article consists of approximately 3 pages of information about T Cells.
This section contains 728 words
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T Cells

When a vertebrate encounters substances that are capable of causing it harm, a protective system known as the "immune system" comes into play. This system is a network of many different organs that work together to recognize foreign substances and destroy them. The immune system can respond to the presence of a disease causing agent (pathogen) in two ways. Immune cells called the B cells can produce soluble proteins (antibodies) that can accurately target and kill the pathogen. This branch of immunity is called "humoral immunity". In cell-mediated immunity, immune cells known as the T cells produce special chemicals that can specifically isolate the pathogen and destroy it.

The T cells and the B cells together are called the lymphocytes. The precursors of both types of cells are produced in the bone marrow. While the B cells mature in the bone marrow, the precursor to the...

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This section contains 728 words
(approx. 3 pages at 300 words per page)
Buy the T Cells Encyclopedia Article
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Gale
T Cells from Gale. ©2005-2006 Thomson Gale, a part of the Thomson Corporation. All rights reserved.
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