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Chapter 12 quiz 1

Antigen any substance including toxins, foreign proteins, or bacteria, that when introduced to the body, is recognized as foreign and activates the immune system.
Interferon molecules diffuse to nearby cells and bind to their membrane receptors.
Lymph Nodes a mass of lymphatic tissue
Neutrophil the most abundant of the white blood cells
Pathogen disease-causing microorganism
Pus the fluid product of inflammation composed of white blood cells, the debris of dead cells, and a thin fluid.
Skin the external covering or integument of an animal body, especially when soft and flexible.
Pyrogen an agent or chemical substance that includes fever
spleen a soft, blood rich organ that filters blood.
tonsils small masses of lymphoid tissue that ring the pharynx.
Created by: RobertVoje