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 cells are necessary for active immunity to occur?

Platelets

Erythrocytes

Neutrophils

T lymphocytes

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Verified step by step guidance

Understand the concept of active immunity: Active immunity involves the body's immune system actively responding to a pathogen by producing antibodies and memory cells, which provide long-term protection.

Identify the role of T lymphocytes: T lymphocytes, or T cells, are a type of white blood cell that play a crucial role in the immune response. They help recognize and attack infected cells and also assist in activating other immune cells.

Differentiate between the cell types: Platelets are involved in blood clotting, erythrocytes (red blood cells) carry oxygen, and neutrophils are a type of white blood cell that primarily target bacteria and fungi. None of these are directly involved in the adaptive immune response.

Recognize the specific function of T lymphocytes in active immunity: T lymphocytes are essential for the adaptive immune response, as they can directly kill infected host cells, activate other immune cells, and regulate the immune response.

Conclude that T lymphocytes are necessary for active immunity: Given their role in recognizing antigens and coordinating the immune response, T lymphocytes are critical for the development of active immunity.