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 Inflammation

Anatomy & Physiology

21. The Immune System

Introduction to Inflammation

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Multiple Choice

Which of the following virulence factors directly contributes to severe inflammation?

Lipopolysaccharide (LPS)

Capsule

Pili

Flagellin

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Verified step by step guidance

Understand the role of virulence factors: Virulence factors are molecules produced by pathogens that contribute to the pathogenicity and severity of the infection.

Identify the function of Lipopolysaccharide (LPS): LPS is a component of the outer membrane of Gram-negative bacteria. It is known to trigger a strong immune response, leading to inflammation.

Examine how LPS contributes to inflammation: LPS activates immune cells, such as macrophages, which release pro-inflammatory cytokines. This process is a key contributor to severe inflammation.

Differentiate between the listed virulence factors: Compare the roles of Capsule, Pili, and Flagellin. Capsules help in evading phagocytosis, Pili are involved in adhesion, and Flagellin is a component of bacterial flagella.

Conclude why LPS is the correct answer: Among the options, LPS is the virulence factor that directly triggers a strong inflammatory response, making it the correct answer.