Table of contents

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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 Heart2h 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

_______ is the immunoglobulin class that neutralizes viruses in the intestinal tract.

IgG.

IgA.

IgD.

IgE.

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Verified step by step guidance

Understand the role of immunoglobulins: Immunoglobulins, or antibodies, are proteins produced by the immune system to identify and neutralize foreign objects like bacteria and viruses.

Identify the different classes of immunoglobulins: The main classes are IgG, IgA, IgM, IgD, and IgE, each with distinct functions and locations in the body.

Focus on IgA: IgA is primarily found in mucosal areas, such as the gut, respiratory tract, and urogenital tract, and is crucial for mucosal immunity.

Recognize the function of IgA: It plays a key role in neutralizing pathogens in the intestinal tract, preventing them from penetrating the epithelial cells and causing infection.

Conclude that IgA is the immunoglobulin class responsible for neutralizing viruses in the intestinal tract, based on its location and function.