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NU 372 Exam 2 Questions with Correct Explanations.
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Immune System - -Protects the body against invasion of antigen (foreign substance that triggers an immune response) -It identifies and destroys potentially harmful cell and remove cellular debris. -*Nonspecific:* skin, cilia, stomach acid -*Specific*: B and T cells -Antibody and Cell mediated immune response Natural immunity - Native/Innate -Present at birth. Provides *nonspecific response* to any foreign invader -*White blood cell action*: release cell mediators such as *histamine, bradykinin, and prostaglandins* and engulf (*phagocytize*) foreign substances -*Inflammatory* response -Physical barriers, such as *intact skin*, *chemical barriers*, and *acidic gastric secretions
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