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:
3) Membrane bound antibodies on B-cell surface (B cells). Humoral immune response an overview: Humoral immune response is mediated by B-cells. B cells origin and maturation takes place in bone marrow.Each B cell has a unique surface receptor which is an antibody molecule. Later on activation this B cell produces the same antibody.) An antibody producing effector cells or plasma cells. Plasma cells do not have a surface Ig. Plasma cells secrete antibodies. A single plasma cell can secrete ~ 2000 antibody molecules/second. 2) Memory B cells which has long life span and possess a surface Ig and responsible for immunologic memory.