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 is not associated with the killing mechanism of a cytotoxic T cell?

Granzymes

Antibody production

Perforin release

Fas ligand interaction

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Verified step by step guidance

Understand the role of cytotoxic T cells: Cytotoxic T cells are a type of immune cell that are primarily responsible for killing cancer cells, cells that are infected (particularly with viruses), or cells that are damaged in other ways.

Identify the mechanisms used by cytotoxic T cells: These cells use several mechanisms to induce cell death, including the release of perforin and granzymes, and the interaction with Fas ligand.

Explain perforin and granzymes: Perforin is a protein that forms pores in the target cell's membrane, allowing granzymes, which are serine proteases, to enter the cell and trigger apoptosis (programmed cell death).

Describe Fas ligand interaction: Fas ligand is a protein that binds to the Fas receptor on the surface of target cells, initiating a cascade that leads to apoptosis.

Clarify the role of antibodies: Antibody production is a function of B cells, not cytotoxic T cells. Cytotoxic T cells do not produce antibodies; instead, they directly kill target cells through the mechanisms described above.