THE IMMUNE SYSTEM
Home
Immunity
Types of Lymphocytes
Lymphocyte Development
Lymphocyte Function
Types of Defenses
Types of Cells and Proteins
Function of the Cell
Types of Immunization
Transfusions and Transplants
Immune Responses that Can Cause Disease
Bibliography
There are two types of defenses: internal and external
Internal Defenses: p
h
agocytic cells, antimicrobial proteins, and natural killer cells.
One response from internal defenses is inflammatory response.
Phagocytosis
Inflammation of the Ankle
External Defenses:
skin, hair, mucous membranes, and secretions.
One response from external defenses is scabs.
Hair
Scab