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

Introduction to the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

The class of immunoglobulin called IgE is primarily involved with which of the following?

Allergic reactions and parasitic infections

Neutralization of bacterial toxins

Opsonization of pathogens

Activation of the complement system

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Verified step by step guidance

Begin by understanding the role of immunoglobulins in the immune system. Immunoglobulins, or antibodies, are proteins produced by B cells that help identify and neutralize foreign objects like bacteria and viruses.

Recognize the different classes of immunoglobulins: IgA, IgD, IgE, IgG, and IgM, each with distinct functions in the immune response.

Focus on IgE, which is known for its role in allergic reactions. It binds to allergens and triggers the release of histamine from mast cells and basophils, leading to symptoms associated with allergies.

Understand that IgE is also involved in the immune response to parasitic infections. It helps in the defense against parasites by promoting inflammation and recruiting immune cells to the site of infection.

Compare the functions of IgE with other immunoglobulins: IgG is involved in opsonization and neutralization of toxins, IgM in complement activation, and IgA in mucosal immunity. This helps clarify why IgE is specifically associated with allergic reactions and parasitic infections.