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 the following best describes how the cell-mediated immune response will be affected by the activation of cytotoxic T cells?

Cytotoxic T cells activate B cells to produce antibodies.

Cytotoxic T cells stimulate the production of histamines.

Cytotoxic T cells produce antibodies to neutralize pathogens.

Cytotoxic T cells directly destroy infected host cells.

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Verified step by step guidance

Understand the role of cytotoxic T cells in the immune response. Cytotoxic T cells, also known as CD8+ T cells, are a type of lymphocyte that play a crucial role in the cell-mediated immune response by directly attacking and destroying infected or cancerous cells.

Recognize that cytotoxic T cells do not activate B cells. B cells are primarily responsible for the humoral immune response, which involves the production of antibodies. Cytotoxic T cells and B cells have distinct roles in the immune system.

Acknowledge that cytotoxic T cells do not stimulate the production of histamines. Histamines are typically released by mast cells and basophils during allergic reactions and are not directly related to the function of cytotoxic T cells.

Clarify that cytotoxic T cells do not produce antibodies. Antibodies are produced by B cells and plasma cells as part of the humoral immune response, not by cytotoxic T cells.

Conclude that the primary function of cytotoxic T cells in the cell-mediated immune response is to directly destroy infected host cells. They achieve this by recognizing antigens presented by infected cells and inducing apoptosis (programmed cell death) in these cells.