RT Book, Section A1 Ash, Rick A1 Morton, David A. A1 Scott, Sheryl A. SR Print(0) ID 1141045311 T1 IMMUNE SYSTEM T2 The Big Picture: Histology YR 2017 FD 2017 PB McGraw-Hill Medical PP New York, NY SN 9780071477581 LK accessphysiotherapy.mhmedical.com/content.aspx?aid=1141045311 RD 2024/04/18 AB The immune system protects the body against invasion by microorganisms, removes tissues damaged by trauma, and eliminates malignant growths. Recognizing these problems requires detecting foreign or unexpected molecules, called antigens, against the background of self-molecules. This recognition is accomplished by membrane-bound antigen receptors on immune system cells. When antigen receptors bind an antigen, these cells initiate effector responses to manage the problems.