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 Adaptive Immunity

Anatomy & Physiology

21. The Immune System

Introduction to Adaptive Immunity

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Multiple Choice

What is the cell responsible for a secondary cell-mediated immune response to an antigen?

Memory T cells

Dendritic cells

Macrophages

Plasma cells

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Verified step by step guidance

Understand the concept of a secondary immune response: This is the immune system's response to an antigen that it has encountered before. It is typically faster and more effective than the primary response.

Identify the types of cells involved in the immune response: T cells, B cells, macrophages, dendritic cells, and plasma cells all play roles in the immune system.

Focus on T cells: These are a type of lymphocyte that play a central role in cell-mediated immunity. They include helper T cells, cytotoxic T cells, and memory T cells.

Learn about memory T cells: These cells are a subset of T cells that remain in the body after an initial infection has been cleared. They 'remember' the antigen and can mount a faster response upon re-exposure.

Conclude that memory T cells are responsible for the secondary cell-mediated immune response to an antigen, as they quickly recognize and respond to previously encountered antigens.