,(
X]VeiZg)/
THE IMMUNE SYSTEM
4.1 Introduction
Theimmune system is a set of organs, tissues, cells and molecules that protect
the body from disease caused by microorganisms and multicellular parasites
(Chapter 2).Immunology is the study of the immune system and how it works.
Unraveling of the mechanisms of immune defense and the use of products of
the immune system in investigating and treating disease has revolutionized the
biomedical sciences in a way that is comparable to that of molecular biology
in recent years. This chapter describes the major components of the immune
system and explains how a coordinated immune response is produced against
infectious agents. In addition, the use of immunological techniques in the
biomedical sciences will be outlined.
OBJECTIVES