Human Anatomy & Physiology (9th Edition)

Published by Pearson
ISBN 10: 0321743261
ISBN 13: 978-0-32174-326-8

Chapter 21 - The Immune System: Innate and Adaptive Body Defenses - Review Questions: 8

Answer

C

Work Step by Step

Helper T cells are a type of T cell that play a central role in adaptive immune response. Shier function is to activate plasma cells and cytotoxic T cells by producing cytokines. They cannot directly attack the target cells where as macrophages, cytotoxic T cells and natural killer cells can.
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