NURS 225 Lecture Notes - Lecture 15: Humoral Immunity, Natural Killer Cell, T Cell
Document Summary
Antiviral, antitoxin, antibacterial, found in all body fluids. Stimulates release of histamine and mast cell degranulation. Iga found in the saliva, tears, colostrum bronchial, gi, vag & prostate secretions. (mucosal surfaces). Prevents the attachment of viruses/ bacteria to epithelial cells. Passive: ab from mother milk/ placenta pass to infant: cells in innate immunity: neutrophils, macrophages, dendritic cells, nk cells, and complement, pamp is associated in innate immunity. This system gives the ability to distinguish self from not self. The pamp attaches to prr which sends signal to host to trigger inflammatory response. Active: antigens introduced in vaccines and body makes ab. T cells develop a receptor which attaches to and recognizes the mhc on the infected cell to signal destruction): characteristics of adaptive immunity: specificity, diversity, memory, self vs non- self. Il: regulates immune response by increasing expression of adhesion molecules on endothelial cells, stimulating migration of leukocytes into tissues, and stimulating antibody production of adaptive immunity,
