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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which statement is incorrect about the Fc region of an immunoglobulin?

The Fc region can activate the complement system.

The Fc region is responsible for binding to cell surface receptors.

The Fc region determines the class of the immunoglobulin.

The Fc region is involved in antigen binding.

Previous problemNext problem

Verified step by step guidance

Understand the structure of an immunoglobulin: Immunoglobulins, or antibodies, are Y-shaped molecules composed of two main regions: the Fab region and the Fc region.

Identify the function of the Fab region: The Fab (Fragment antigen-binding) region is responsible for binding to antigens. It is the variable part of the antibody that recognizes and binds to specific antigens.

Identify the function of the Fc region: The Fc (Fragment crystallizable) region is the constant part of the antibody that interacts with cell surface receptors and the complement system. It does not bind to antigens.

Evaluate the given statements: Compare each statement with the known functions of the Fc region. The Fc region can activate the complement system, bind to cell surface receptors, and determine the class of the immunoglobulin.

Determine the incorrect statement: The statement 'The Fc region is involved in antigen binding' is incorrect because antigen binding is the function of the Fab region, not the Fc region.