EBK BIOLOGY:SCIENCE F/LIFE
6th Edition
ISBN: 9780134819167
Author: BELK
Publisher: PEARSON
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Chapter 21, Problem 8LTB
Summary Introduction
Introduction:
The immune system can be defined as the organs and body processes that resist the infection and toxins. This system includes the organs such as bone marrow, thymus, and lymph nodes. Helper T cells are the most significant cells in adaptive immunity. These are needed for about all the adaptive immune responses. These cells aid in the activation of B-cells to release the antibodies and macrophages to destroy the consumed microbes. In addition, they help in the activation of cytotoxic T-cells to destroy the infected target cells.
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