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Immune System

TermDefinition
Immune System body system responsible for protecting the body from disease and infection
Immunity ability to resist an infection
Pathogen microorganism capable of causing disease
Antigen molecule capable of stimulating immune response; present on pathogens
Cytokine chemical messengers used to regulate immune system activity
Innate Immunity immunity which occurs naturally based on basic physiology or genetic factors;
Adaptive Immunity immunity which is developed over time based on exposure to pathogens;
Leukocyte white blood cell; response cells of the immune system; include many types
Humoral Immune Response component of adaptive immunity which occurs in the body’s humors,
Humors fluid or semifluid substance; most often used to refer to bodily fluids
Antibody immune protein which binds to antigens to mark pathogens for attack and
Cellular Immune Response component of adaptive immunity which occurs within infected cells and
Phagocytosis process in which a cell ingests another cell, cell fragment or particle
Phagocyte leukocyte capable of phagocytosis
Phagocytize to ingest through phagocytosis
Degranulation process in which a cell releases molecules from granules within the cell
Antigen-presenting Cell (APC) leukocyte capable of processing and presenting antigens for recognition by
Granulocyte leukocyte characterized by evident granules and a nucleus with multiple lobes
Mononuclear Leukocyte (Agranulocyte) leukocyte characterized by a single round nucleus and no obvious granules
Cellular Lineage developmental history of a cell as traced back to cell origination
Neutrophil phagocytic myeloid granulocyte generally first to respond to infection
Eosinophil phagocytic myeloid granulocyte primarily responsible for dealing with parasitic
Inflammatory Response redness, swelling, pain, itching, localized warmth, etc.; also referred to as
Created by: kcrane13
 

 



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