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 Complement System

Anatomy & Physiology

21. The Immune System

Introduction to the Complement System

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Multiple Choice

Which of the following is NOT a role of activated complement in the immune response?

Recruitment of inflammatory cells

Opsonization of pathogens

Enhancement of antibody production

Direct lysis of pathogens

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Verified step by step guidance

Understand the role of complement proteins in the immune system. Complement proteins are part of the innate immune system and help to enhance the ability of antibodies and phagocytic cells to clear pathogens from an organism.

Identify the functions of activated complement proteins. They are involved in processes such as opsonization, recruitment of inflammatory cells, and direct lysis of pathogens.

Opsonization refers to the process by which complement proteins coat the surface of pathogens, making them easier for phagocytes to recognize and engulf.

Recruitment of inflammatory cells involves complement proteins attracting immune cells to the site of infection, which helps in mounting an effective immune response.

Direct lysis of pathogens is achieved through the formation of the membrane attack complex (MAC), which creates pores in the pathogen's membrane, leading to its destruction. Enhancement of antibody production is not a direct role of complement proteins.