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 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 Adaptive Immunity

Anatomy & Physiology

21. The Immune System

Introduction to Adaptive Immunity

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Multiple Choice

Which of the following are the main mediators/initiators of Type II hypersensitivity reactions?

Histamine

IgE antibodies

IgG and IgM antibodies

T lymphocytes

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Verified step by step guidance

Understand that Type II hypersensitivity reactions are also known as cytotoxic hypersensitivity reactions. These reactions involve the destruction of target cells by the immune system.

Recognize that the main feature of Type II hypersensitivity is the involvement of antibodies that bind to antigens on the surface of target cells, leading to cell destruction.

Identify the types of antibodies involved in Type II hypersensitivity. These are typically IgG and IgM antibodies, which are responsible for binding to the antigens on the cell surfaces.

Differentiate between the roles of various antibodies: IgE is primarily involved in Type I hypersensitivity (allergic reactions), while IgG and IgM are involved in Type II hypersensitivity.

Conclude that the main mediators/initiators of Type II hypersensitivity reactions are IgG and IgM antibodies, as they are responsible for targeting and destroying cells with specific antigens.