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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 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

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Multiple Choice

Which of the following is not an antigen-presenting cell?

B cell

Neutrophil

Macrophage

Dendritic cell

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Understand the role of antigen-presenting cells (APCs) in the immune system. APCs are responsible for capturing antigens and presenting them to T cells to initiate an immune response.

Identify the common types of antigen-presenting cells. The primary APCs include dendritic cells, macrophages, and B cells, all of which have the ability to present antigens to T cells.

Examine the function of each cell type listed in the problem: B cells, neutrophils, macrophages, and dendritic cells.

Recognize that neutrophils are primarily involved in phagocytosis and the destruction of pathogens, but they do not typically present antigens to T cells.

Conclude that neutrophils are not considered antigen-presenting cells, unlike B cells, macrophages, and dendritic cells, which are all capable of presenting antigens.