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There are four different types of hypersensitivities. Type I Hypersensitivities are mostly Allergies and they are exaggerated, misdirected expression of immune responses to an allergen (antigen). The severity of allergies can range from atopy (local allergy such as hay fever or Asthma) or anaphylaxis (a violent and potentially fatal reaction that leads to narrowing of the bronchial airways). Foods, drugs, pollen and bee stings can trigger these reactions and this kind of sensitivity can be transferable to normal people through serum antibody.
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∙ 12y ago
Inappropriate or excessive immune responses to antigens are known as hypersensitivity reactions. These can result in allergic reactions, autoimmune diseases, or immune-mediated tissue damage. Examples include allergic rhinitis, systemic lupus erythematosus, and rheumatoid Arthritis.
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The foreign or nonself proteins that trigger immune responses are called?
An immune response is based on the ability to distinguish molecules that are part of the body ("self") from those that are not ("nonself," or foreign). Such molecules that can elicit an immune response are called antigens.
In order for antigens to incite the immune response they must be 1 processed 2 reduced 3 combined with other proteins 4 directed?
Antigens incite the immune response by being processed and presented by antigen-presenting cells, such as dendritic cells, to T cells. Once presented, the antigens can activate specific immune responses, leading to the generation of memory cells and effector cells that target the antigen. Antigens that are not processed, reduced, or combined with other proteins may not effectively stimulate the immune system.
What is the location of HLA1 and HLA2?
HLA1 and HLA2 are located on chromosome 6 in the human genome. They encode proteins that play a key role in the immune system by presenting antigens to T cells for immune responses.
What types of microbes do adaptive immune responses combat?
Adaptive immune responses combat a wide range of microbes, including bacteria, viruses, fungi, and parasites. The adaptive immune system can generate specific responses tailored to each type of microbe, leading to targeted and long-lasting protection against future encounters.
What are the difference between antiviral immunity and anti bacterial immunity?
Antiviral immunity targets viruses by recognizing viral antigens and activating immune responses specific to viral infections. Antibacterial immunity targets bacteria by recognizing bacterial antigens and activating immune responses specific to bacterial infections. The mechanisms of immune cell activation, the types of cells involved, and the specific responses generated differ between antiviral and antibacterial immunity.
What is an excessive immune response to antigens?
Allergies
Macromolecules that induce the immune system to make certain responses?
antigens
The foreign or nonself proteins that trigger immune responses are called?
An immune response is based on the ability to distinguish molecules that are part of the body ("self") from those that are not ("nonself," or foreign). Such molecules that can elicit an immune response are called antigens.
What are Examples of inappropriate responses of the immune system?
Fever, Inflammatory myopathies, and vitamin A deficiency.
Is this true or false Allergies or hypersensitivities are normal immune responses?
They're abnormal immune responses - by definition, an allergy is an inappropriate response to a foreign substance. After all, it's not known as an 'allergy' when people's immune systems attack harmful pathogens, despite the body mounting somewhat similar immune responses.
Why is an antigen important?
Antigens are important because they trigger responses to pathogens by the immune system. Without them, no prevention against pathogens would take place.
In order for antigens to incite the immune response they must be 1 processed 2 reduced 3 combined with other proteins 4 directed?
Antigens incite the immune response by being processed and presented by antigen-presenting cells, such as dendritic cells, to T cells. Once presented, the antigens can activate specific immune responses, leading to the generation of memory cells and effector cells that target the antigen. Antigens that are not processed, reduced, or combined with other proteins may not effectively stimulate the immune system.
What types of microbes do adaptive immune responses combat?
Adaptive immune responses combat a wide range of microbes, including bacteria, viruses, fungi, and parasites. The adaptive immune system can generate specific responses tailored to each type of microbe, leading to targeted and long-lasting protection against future encounters.
What are the difference between antiviral immunity and anti bacterial immunity?
Antiviral immunity targets viruses by recognizing viral antigens and activating immune responses specific to viral infections. Antibacterial immunity targets bacteria by recognizing bacterial antigens and activating immune responses specific to bacterial infections. The mechanisms of immune cell activation, the types of cells involved, and the specific responses generated differ between antiviral and antibacterial immunity.
In order for antigens to incite the immune response they must be?
in order for antigens to incite the immune response the y must be ?
What are Small molecules that also act as antigens?
Small molecules that can act as antigens include drugs, environmental chemicals, and some food components. These molecules are recognized by the immune system as foreign, leading to the production of specific antibodies and immune responses. Examples include penicillin, bee venom, and certain metals like nickel.
Major histocompatibility complex mch is important in?
The major histocompatibility complex (MHC) is important in the immune system for presenting antigens to T cells. It plays a crucial role in distinguishing self from non-self molecules and triggering immune responses against foreign invaders such as pathogens. MHC molecules are highly polymorphic, allowing for a diverse immune response to a wide range of antigens.
