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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

Major Histocompatibility Complex Molecules

Anatomy & Physiology

21. The Immune System

Major Histocompatibility Complex Molecules

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Multiple Choice

MHC class II molecules are found on:

Basophils & macrophages.

B cells & Neutrophils.

Macrophages & Dendritic cells.

T helper cells & Macrophages.

All antigen presenting cells (APCs).

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Verified step by step guidance

Understand the role of MHC class II molecules: These molecules are crucial for the immune system, specifically in presenting antigens to T helper cells.

Identify the types of cells that express MHC class II molecules: These are primarily antigen-presenting cells (APCs), which include macrophages, dendritic cells, and B cells.

Recognize that basophils and neutrophils are not typically involved in antigen presentation and do not express MHC class II molecules.

Note that T helper cells interact with MHC class II molecules but do not express them themselves; they are the recipients of the antigen presentation.

Conclude that the correct answer involves macrophages and dendritic cells, as these are key APCs that express MHC class II molecules.