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 B Lymphocytes

Anatomy & Physiology

21. The Immune System

Introduction to B Lymphocytes

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Multiple Choice

Which of the following best describes the primary action of B lymphocytes?

They phagocytize pathogens and present antigens.

They activate T cells to enhance immune response.

They directly attack and destroy infected cells.

They produce antibodies to neutralize pathogens.

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Verified step by step guidance

Understand the role of B lymphocytes in the immune system. B lymphocytes, or B cells, are a type of white blood cell that plays a crucial role in the humoral immune response.

Recognize that B lymphocytes are primarily responsible for producing antibodies. Antibodies are proteins that specifically bind to antigens, which are foreign substances that elicit an immune response.

Differentiate between the roles of B lymphocytes and other immune cells. For example, T cells are involved in cell-mediated immunity and can directly attack infected cells or help activate other immune cells.

Identify that B lymphocytes do not phagocytize pathogens. Phagocytosis is primarily performed by other cells like macrophages and neutrophils.

Conclude that the primary action of B lymphocytes is to produce antibodies, which neutralize pathogens by binding to them and marking them for destruction by other immune cells.