Biology for Non-STEM Majors

study guides for every class

that actually explain what's on your next test

Allergy

from class:

Biology for Non-STEM Majors

Definition

An allergy is an exaggerated immune response to a substance that is typically harmless, known as an allergen. This response can cause symptoms ranging from mild irritation to severe reactions like anaphylaxis.

congrats on reading the definition of allergy. now let's actually learn it.

ok, let's learn stuff

5 Must Know Facts For Your Next Test

  1. Allergens can include pollen, pet dander, food, insect stings, and medications.
  2. The immune system produces Immunoglobulin E (IgE) antibodies when it encounters an allergen.
  3. Histamine release by mast cells during an allergic reaction leads to symptoms such as itching, swelling, and redness.
  4. Common allergic conditions include hay fever, asthma, eczema, and food allergies.
  5. Anaphylaxis is a severe allergic reaction that can be life-threatening and requires immediate medical attention.

Review Questions

  • What types of substances commonly act as allergens?
  • Which antibody is primarily involved in allergic reactions?
  • What are the typical symptoms caused by the release of histamine during an allergic reaction?

"Allergy" also found in:

ยฉ 2024 Fiveable Inc. All rights reserved.
APยฎ and SATยฎ are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.
Glossary
Guides