<LCPO> VANDER'S HUMAN PHYSIOLOGY
<LCPO> VANDER'S HUMAN PHYSIOLOGY
15th Edition
ISBN: 9781266214660
Author: WIDMAIER
Publisher: MCG
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Chapter 18, Problem 4RC
Summary Introduction

Introduction: The immune system involves a complex network of cells, proteins, and other elements that play an essential role in defending the body against any infection or invading microbes. It is a host defense system that is activated in response to an appropriate antigen (any foreign substance). This system is present since the time of birth (innate immunity) and has the capacity to adapt itself and develop memory to specific antigens (adaptive immunity) in due course of time.

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