Relier Pairs ImmunityVersion en ligne Broad par Dawn Forgione 1 Chemotaxis 2 Natural immunity - External 3 Acquired immunity 4 Formation of exudate 5 Cellular immunity 6 Factors that affect defense mechanisms 7 Dilation of capillaries (hyperemia) 8 Natural immunity 9 Inflammatory reponse 10 Humoral immunity 11 Natural / Nonspecific immunity 12 Nonspecific - second line of defense 13 Natural immunity - Internal 14 Capillary permeability increases (diapedesis) to increase blood flow to area Removal of foreign substances (antigens) by specialized cells (phagocytosis) Redness, swelling, heat, pain Derived from plasma, containing antibacterial substances, phagocytic cells, and any present antibiotics Substances (antigens) in the blood are provided protection from microorganisms Inflammatory response Born with the ability to resist infections / normal bodily functions First line of defense against infection (external and internal) Chemicals are released which cause phagocytic white cells to migrate to the area Allows white blood cells to leave the blood and travel to the injured area Structural barriers to keep infectious agents out of the body (skin, cilia, etc) Age, hormones, drugs/chemicals, malnutrition, fatigue/stress, genetic factors Requires exposure to a pathogen, recovery usually results in a lifelong immunity Stomach acid, mucus linings, tears, ear wax..
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