Overview
Allergic reactions are the body's exaggerated response to harmless substances known as allergens. When exposed to these allergens, the immune system mistakenly identifies them as threats, leading to the release of chemicals like histamine. This can result in a range of symptoms, from mild irritation...
Key Terms
Example: Pollen is a common allergen that can trigger hay fever.
Example: Histamine causes symptoms like itching and swelling.
Example: Anaphylaxis can occur from bee stings or certain foods.
Example: IgE antibodies are specifically involved in allergic reactions.
Example: High levels of IgE can indicate an allergy.
Example: Skin prick tests are commonly used to identify allergens.
Related Topics
Key Concepts
Immune SystemAllergensHistamine ReleaseAnaphylaxis