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What is the molecule that can be recognized by the immune system?
Antigens.
What does an antigen do?
An antigen is a foreign body. It is used as a "template" to begin an appropriate immune response.
What is antigene and antibody?
An antigen is a substance that can invoke an immune response. While an antibody is the immune system's response to an antigen. Antibodies, act by directly neutralizing the antigen and/or bind to the antigen and signaling marcophages to phagocytose the antigen.
All immunogen are antigen but all antigen are immunogen?
An Immunogen is foreign particle that triggers the body's immune system where as Antigen is also a foreign particle , due to its low molecular weight it is unable to trigger immune system. Example for antigen is Hapten
When the immune system does not respond to a particular antigen?
Tolerance exists when the immune system does not respond to a particular antigen. All cells and tissues in the body contain antigens that normally do not stimulate an immune response. The immune system is said to exhibit tolerance toward such antigens.
What is the exact nature of antibodies?
antibodies are immune cells which are present in the immune system and it helps in , if any foregin particles or antigens enters in our body it kills that antigen or it binds to the antigen and forms the antigen _antibody complex
What term describes foreign molcules that activate the immune system?
Antigen : NovaNet
What is the medical term meaning a foreign substance?
The medical term for a foreign substance is "antigen." An antigen is any substance that the immune system identifies as foreign and triggers an immune response.
What is an antigen and how does the immune system use them?
Antigens are majorly organic molecules which are not familiar to the organism itself. and starts immune response.
Do antigens cause normal immune response?
No. Hapten is an antigen whic has low molecular weight and does not trigger immune system.
What is the function of langerhan's cells?
Langerhans cells are a subset of dendritic cells that reside in the epidermis (Part of the immune system). They have long dendrites (like arms) that capture antigen in the skin, and when they find an antigen, they migrate to lymph nodes and present to T cells allowing the adaptive immune system to respond.
Do vaccines tear down the immune system?
No, there is no proof of that. It is thought that vaccines are good for the function of the immune system because they give it "exercise"; or at least they are not bad for the immune system. Some believe that if the immune system isn't triggered to respond to an antigen periodically, it will not function as well when a real antigen invades the body, in sort of a "use it or lose it" way. That may not actually happen in the immune system, but many body systems and parts do work that way.
