Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
MM- Immunity
| Term | Definition |
|---|---|
| adaptive immunity | immunity or resistance to a specific pathogen; slower to respond, has memory component |
| Apoptosis | process of programmed cell death |
| Autoantigens | antigens on the surface of normal body cells |
| B cells | Cells manufactured in the bone marrow that create antibodies for isolating and destroying invading bacteria and viruses. |
| Cytotoxic T cells | A type of T cell that kills infected body cells and cancer cells |
| endogenous antigens | antigens produced by microbes that multiply inside the cells of the body |
| exogenous antigens | include toxins and other components of microbial cell walls, membranes, flagella, and pili |
| Helper T cells | T cells that help the immune system by increasing the activity of killer cells and stimulating the suppressor T cells |
| Interleukins | proteins (cytokines) that are released from infected cells that stimulate the growth of B and T lymphocyte |
| Lymphocytes | A type of white blood cell that make antibodies to fight off infections |
| Major Histocompatibility Complex (MHC) | "flag" on top of cells; wait for a protein addition to signal if cell is healthy or infected. |
| memory cells | General term for lymphocytes that are responsible for immunological memory and protective immunity. |
| MHC I | When a healthy cell presents an antigen protein outside the cell to signal it is infected; signals cytotoxic T to destroy |
| MHC II | Expressed on the surface of APCs (macrophages, dendritic cells, B cells) and functions by presenting antigen on the outside of the cell signaling that it is foreign in the body. |
| Regulatory T cells | may function in preventing autoimmune reactions, also known as suppressor T cells |
| T cells | Cells created in the thymus that produce substances that attack infected cells in the body. |
| self antigen | An antigen placed on the MHC protein to signal that this is a healthy cell. |
| dendritic cells | Their main function is to process antigen material and present it on the cell surface to the T cells of the immune system. They act as messengers between the innate and the adaptive immune systems. |
| Macrophages | Found within the lymph nodes, they are phagocytes that destroy bacteria, cancer cells, and other foreign matter in the lymphatic stream by engulfing them using phagocytosis. |
| mast cells | They serve as a first line of defense against antigens entering the body due to their location in the skin and mucosa |
| natural killer cells (NK cells) | effector lymphocytes of the innate immune system that control several types of tumors and microbial infections by limiting their spread and subsequent tissue damage |
| Neutrophils | Most common lymphocyte. A type of white blood cell that engulfs invading microbes and contributes to the nonspecific defenses of the body against disease. Cause pus formation. |
| Phagocytosis | A type of endocytosis in which a cell engulfs large particles or whole cells |
| Endogenous Antigen | foreign antigens that are present inside body cells |
| Exogenous Antigen | include toxins and other secretions and components of microbial cell walls, membranes, flagella, and pili |
Created by:
srjones
Popular Biology sets