Defenses and Behavior (12)

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recognition phase

the body recognizes a pathogen by distinguishing self from non-self

Activation phase

the body mobilizes molecules and cells to fight the invader

Effector phase

the body destroys the invador

Innate immunity

the body’s generic response to pathogen specific immune response which is preset at birth and requires no experience. defenses present and activate quickly

Adaptive acquired immunity

its pathogen-specific immune response through which it can remember and recognize specific pathogens to better fight them. slow to develop and long-lasting third line of defense

humoral response

b cells and antibodies fighting off infections.

cell-mediated response

cytotoxic T cells defending against infection

Early response (0-4 Hrs)

body initially relies on physical and chemical barriers that help prevent infection ie skin as well as protective conditions such as dryness additional defenses include mucus, defensins, which help destroy microbes

intermediate response (4-96 hours)

activated innate defenses. inflammation phagocytosis etc

late response (>96 hrs)

adaptive specific immunity. humoral immunity, cell-mediated.