3 meanings of LRU acronym and LRU abbreviation in Aviation. Get the definition of LRU in Aviation by All Acronyms dictionary. Top Definition: Line Replaceable Unit In Aviation.
â¢ Humoral immunity is mediated by B-cells while cell-mediated immunity is mediated by T-cells. â¢ In the humoral immunity, the B-cells secrete antibodies whereas in the cell-mediated immunity, the T-cells do not secrete receptors. T-cell receptors are bound to the T-cells and the cells themselves bind with antigens. The antibodies are used in the humoral immunity whereas the receptors are used in the cell-mediated immunity to defend against pathogens. â¢ Unlike in the cell-mediated immunity, the antigens are destroyed by B-cell antibodies outside the B-cells in the humoral immunity. Related posts:
Thus humoral immunity involves the production of antibodies by plasma cells and this constitutes the primary immune response. When there is an exposure to the same antigen second time, the memory B cells are alerted and rapidly differentiate into plasma cells that produces antibodies.This constitutes the secondary immune response.hen there is an exposure to the same antigen second time, the memory B cells are alerted and rapidly differentiate into plasma cells that produces antibodies. This constitutes the secondary immune response.