Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

21. The Immune System

Classes of Antibodies

Anatomy & Physiology

21. The Immune System

Classes of Antibodies

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Multiple Choice

Which antibody is primarily involved in triggering allergic reactions?

IgE

IgA

IgM

IgG

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Verified step by step guidance

Understand the role of antibodies in the immune system. Antibodies, also known as immunoglobulins, are proteins produced by B cells that help identify and neutralize foreign objects like bacteria and viruses.

Learn about the different classes of antibodies: IgA, IgD, IgE, IgG, and IgM. Each class has a specific role in the immune response.

Focus on IgE antibodies. IgE is primarily involved in allergic reactions. It binds to allergens and triggers the release of histamine and other chemicals from mast cells and basophils, leading to symptoms of allergies.

Compare IgE with other antibodies: IgA is found in mucous membranes and body secretions, IgM is the first antibody produced in response to an infection, and IgG is the most abundant antibody in the blood and provides long-term protection.

Conclude that IgE is the antibody primarily responsible for allergic reactions, distinguishing it from other types of antibodies based on its specific function in the immune system.