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Cytokines such as interferrons and interleukins are secreted by the T cell in response to antigen. These chemicals are also secreted by B cells, dendrictic cells and natural killer cells.
These chemicals are signalling agents that modulate (or properly control) the immune response
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An immune response in which t cells destroy antigens?
Cell-mediated immunity
What do the different types of blood cells work together to produce the immune response?
Antigens! I have this exact question for health!
What types of antigens are recognized by B cells?
Processed fragments of protein antigens displayed on surfaces of body cells.
What protects the body from free antigens?
The immune system protects the body from free antigens. It does so through the production of antibodies that recognize and neutralize antigens, as well as through the activation of immune cells, such as T cells and natural killer cells, that can directly destroy cells infected with antigens. Additionally, the immune system has memory cells that can recognize and respond more quickly if the same antigen is encountered again in the future.
What typoes of cells produce antigens?
All cells produce antigens, or cell surface markers. The only question is whether the antigens are self antigens which means they belong in the body or they're foreign antigens which means they are an invading bacteria or virus (or a cancerous cell).
Which chemicals are secreted by T-helper cells to stimulate b-plasma cells to divide?
These chemicals are called CYTOKINES.
Lymphocytes that act directly on antigens to destroy them or produce chemicals that are toxic to them called?
Lymphocytes that act directly on antigens to destroy them or produce chemicals that are toxic to them are called T4 cells. They are also known as T helper cells.
An immune response in which t cells destroy antigens?
Cell-mediated immunity
Which immune cells are attracted to the chemicals secreted by helper T cells?
Cytotoxic t cells and b lymphocytes!
What immune system cells are attracted to the chemicals secreted by helper T cells?
Cytotoxic t cells and b lymphocytes!
Which non hormonal chemical messengers is secreted by mast cells and contributes to the inflammatory response?
Histamine
What do the different types of blood cells work together to produce the immune response?
Antigens! I have this exact question for health!
How do phagocyte cells use their membranes to protect us?
They have receptors lining their membrane which aid in locating sources of antigens by the chemicals they release.
What is acquired Immune Response?
The acquired immune response is also known as the specific immune response. This involves the presentation of micro organisms antigens by macrophages to T and B lymphocytes (T and B cells). T cells and B cells specific to these antigens will then go through clonal expansion (mass production) to help carry out a specific response that has been 'acquired' as a direct result or particular microorganisms antigens. T cells are divided into T helper and T killer, and B cells into memory cells and plasma cells. T helper cells aid B cells in their production and carrying out their functions. T killer cells kill infected cells (those containing viruses or bacteria, as detected by their presentation of antigen on MHC Class 1 receptor molecules on their surface). B cells differentiate into plasma cells and memory cells, plasma cells produce antibodies specific to the type or types of antigens detected. Memory cells have the ability to live for long amounts of time and quickly differentiate into plasma cells should the same antigens present at a later date, allowing a faster and more efficient immune response if infected again with the same microorganism. The acquired immune response usually takes 7-10 days after initial presentation of the antigens by macrophages - unless this is a secondary response, in which case the person should have already produced memory cells so can deal with the invading microorganisms faster and more efficiently. The innate (passive) immune system is responsible for initial responses, this is non specific and involves neutrophils largely.
What types of antigens are recognized by B cells?
Processed fragments of protein antigens displayed on surfaces of body cells.
How are the roles of b and t cells different how are their roles similar?
Both are T and B lymphocytes are produced in bone marrow, but B lymphocytes mature in bone marrow and are part of the humoral response, while T lymphocytes mature in the thymus gland and are part of the cell mediated response.
What prevents some bacterial diseases?
You're innate and adaptive immune system. Basically - your innate system senses the presence of invader bacterial intruders and dendritic cells engulf them and then present them to B and T cells in your lymph nodes triggering a specific adaptive immune response. -B cells produce secreted antigens called antibodies that can bind to the toxins that the pathogenic bacteria produce and thus prevent disease and kill the bacteria. -There are bacteria and virus' that can evade this response. Some hide within our own cells ... a good example of this is HIV (virus).
