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10 terms

Chapter 8 PNI

STUDY
PLAY
Non-Specific Immunity
First line of immune defense that creates the same response to all invaders
Specific Immunity
When an antigen has been encountered before (natural immunity) or a vaccination creates a "memory" for specific antigens (acquired immunity)
Phagocytosis
Eating/Engulfing bacteria
Antigen
Infectious Agent
Antibodies
Large proteins that will recognize and bind to some specific feature of the invading infectious agent (typically, a distinctive surface protein)
Cytokines
blood-borne chemical messengers, proteins, that are released by cells of the immune system that communicate between different cell types
Autoimmune Disease
over activation of the immune system; immune system considers a healthy constituent of your body to actually be something invasive and attacks
Angiogenesis
Growth of capillaries to aid in growth and provide nutrients
Glucocorticoids stimulate this process
Telomeres
Sequence of repetitive bases at the ends of linear chromosomes that prevent adjacent chromosomes from attaching to each other
Telomerase
An enzyme, replenish telomeres