Natural killer cells Endogenous Pyrogens Antibodies use 2X N

Natural killer cells Endogenous Pyrogens Antibodies (use 2X) Nonspecific internal response. T-cell receptors Suppressor T-cells External Barrier Memory T-cells Mucous Membranes Phagocytic Cells Recognition Attack Immunity Invading Organisms Specific immune response Helper T-cells Leukocytes Plasma Cells Cytotoxic T-cells Inflammation Effector Cells Memory Protection Skin T-cells

Solution

Immunology is a branch of science that deals with the defense system of our body against the foreign antigen. Immunity is specific and nonspecific. Specific immunity includes the b cell , t cell which produce antibody or directly kill the target cell via interaction to their receptor. Nonspecific immune response includes inflammation, phagocytosis, skin, mucous membrane, pH and other factor.

Immune system has first line of defence which is an external barrier, examples are skin and mucous membrane.

If breaches then it triggers a nonspecific internal response, fever triggered by inflammation, phagocytic cells such as leukocytes and endogenous pyrogens and NK cells.

Immune system function for attack from invading organism. If non specific immune response are not effective then followed by specific immune respone which includes protection , recognition and memory.

Protection mediated by B cells and T cell, B cell produce plasma cell that produce antibody whereas T cells produce effector cells that produce helper T cell, Cytotoxic T cell and suppressor T cell.

Recognition of antigen by antibody and by T cell receptor.

Memory function mediated by memory B cell and memory Tcell which produce immunity.