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 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

Introduction to the Complement System

Anatomy & Physiology

21. The Immune System

Introduction to the Complement System

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Multiple Choice

The possible effects of the lectin pathway of the complement system are?

C3 convertase formation.

Opsonization of infecting microbes.

Cell lysis of infecting microbes.

Triggering the inflammatory response.

All of the above.

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Verified step by step guidance

Understand that the lectin pathway is one of the three pathways of the complement system, which is part of the immune response.

Recognize that the lectin pathway is activated by the binding of mannose-binding lectin (MBL) to carbohydrates on the surface of pathogens.

Identify that once activated, the lectin pathway leads to the formation of C3 convertase, an enzyme complex that plays a central role in the complement system.

Acknowledge that C3 convertase cleaves C3 into C3a and C3b, where C3b acts as an opsonin, marking pathogens for phagocytosis, and C3a contributes to the inflammatory response.

Realize that the complement system can also lead to the formation of the membrane attack complex (MAC), which causes cell lysis of infecting microbes, thus all the listed effects are possible outcomes of the lectin pathway.