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 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

Cell Communication: Cytokines

Anatomy & Physiology

21. The Immune System

Cell Communication: Cytokines

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Multiple Choice

In what process is tumor necrosis factor (TNF) not involved?

Chemotaxis of phagocytes.

Fever.

The inflammatory response.

The classic complement pathway.

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Verified step by step guidance

Understand the role of Tumor Necrosis Factor (TNF): TNF is a cytokine involved in systemic inflammation and is part of the body's immune response.

Identify the processes TNF is involved in: TNF plays a role in chemotaxis of phagocytes, fever, and the inflammatory response.

Define chemotaxis of phagocytes: This is the movement of phagocytes towards the site of infection, guided by chemical signals, where TNF acts as a signaling molecule.

Explain TNF's role in fever: TNF can induce fever by acting on the hypothalamus, which regulates body temperature.

Clarify the classic complement pathway: This is a part of the immune system that enhances the ability to clear microbes and damaged cells, and it is not directly influenced by TNF.