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A substance which causes an immunological reaction when introduced into the body of man is?
An Antigen
What is an autoantigen?
An antigen is an antibody generator which is introduced to the body to provoke a reaction. When appropriate an autoantigen is introduced for specific autoimmune issues.
Can a person can go into anaphylactic shock on their first exposure to an antigen?
Yes, it is possible for a person to go into anaphylactic shock on their first exposure to an antigen if they have a severe and immediate allergic reaction. This is known as anaphylaxis and can be life-threatening.
The immune cell that allows for subsequent recognition of an antigen resulting in a secondary response is called an?
Memory cell. Memory cells are a type of immune cell that remember specific antigens upon initial exposure, allowing for a faster and more effective response upon subsequent exposure to the same antigen.
Blocking the antigen receptors on the surface of the lymphocytes would interfere with what?
Antigen recognition
Does a person get sick every time exposed to an antigen?
No. You are exposed to antigens all day every day. If you are allergic to the antigen then you may have an allergic reaction or not depending on a lot of factors such as the manner of exposure and the level.
Initial exposure to an antigen?
The answer is sentizitation
What is an Arthus reaction?
An Arthus reaction is a hypersensitivity reaction involving the in situ formation of antigen/antibody complexes after the intradermal injection of an antigen.
What immune cell allows for subsequent recognition of an antigen resulting in a secondary response?
White blood cells, or leukocytes. The two basic types of leukocytes are: # phagocytes, cells that destroy invading organisms. # lymphocytes, cells cause the body to remember and recognize previous invaders and help the body destroy them.
What is the medical term meaning life-threatening reaction to an antigen?
Anaphylaxis is a life-threatening, acute allergic reaction to an antigen.
After the first exposure to an antigen what carries the record of the exposure in the body?
Memory B cells and memory T cells carry the record of the first exposure to an antigen in the body. These cells are generated during the initial immune response and remain in the body to provide a faster and stronger immune response upon re-exposure to the same antigen.
What describes the body's recognition of a relatively harmless substance as a dangerous antigen and subsequent mounting of an immune response?
an allergic reaction
