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

Which of these best describes the role of cell-mediated immunity?

It provides a physical barrier to pathogens.

It enhances the production of red blood cells.

It targets and destroys infected or cancerous cells through T cells.

It involves the production of antibodies by B cells.

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Verified step by step guidance

Understand the components of the immune system: The immune system is divided into two main types of responses: humoral immunity and cell-mediated immunity.

Define cell-mediated immunity: This type of immunity does not involve antibodies but instead relies on the activation of phagocytes, antigen-specific cytotoxic T-lymphocytes, and the release of various cytokines in response to an antigen.

Identify the role of T cells: In cell-mediated immunity, T cells play a crucial role. They are responsible for identifying and destroying infected or cancerous cells.

Differentiate from humoral immunity: Unlike humoral immunity, which involves B cells and the production of antibodies, cell-mediated immunity directly targets and eliminates cells that are infected or abnormal.

Conclude the role of cell-mediated immunity: Based on the understanding of T cells and their function, cell-mediated immunity is best described as targeting and destroying infected or cancerous cells through T cells.