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 T Lymphocytes

Anatomy & Physiology

21. The Immune System

Introduction to T Lymphocytes

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Multiple Choice

What is the primary function of T cytotoxic cells?

To activate B cells for antibody production

To produce antibodies against pathogens

To suppress the immune response

To directly kill infected host cells

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Verified step by step guidance

Understand the role of T cytotoxic cells in the immune system. These cells are a type of T lymphocyte that play a crucial role in the body's defense against pathogens.

Recognize that T cytotoxic cells are primarily involved in the direct killing of infected host cells. They identify and destroy cells that have been compromised by viruses or other intracellular pathogens.

Differentiate between the functions of various immune cells. For example, B cells are responsible for antibody production, while T helper cells assist in activating B cells and other immune responses.

Learn how T cytotoxic cells recognize infected cells. They use receptors to detect antigens presented by infected cells, which triggers their cytotoxic activity.

Explore the mechanism of action of T cytotoxic cells. Once they recognize an infected cell, they release perforins and granzymes that induce apoptosis, effectively killing the infected cell.