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

What is the key difference between active immunity and passive immunity?

Active immunity provides immediate protection, while passive immunity takes time to develop.

Active immunity involves the production of antibodies by the individual's own immune system, while passive immunity involves the transfer of antibodies from another source.

Active immunity is temporary, while passive immunity provides lifelong protection.

Active immunity is acquired through vaccination, while passive immunity is only acquired through natural infection.

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Verified step by step guidance

Begin by understanding the concept of immunity, which is the body's ability to resist or eliminate potentially harmful foreign materials or abnormal cells.

Active immunity refers to the process where the individual's own immune system is stimulated to produce antibodies and memory cells in response to exposure to a pathogen or a vaccine. This type of immunity is long-lasting and can sometimes provide lifelong protection.

Passive immunity involves the transfer of antibodies from another source, such as maternal antibodies passed to a baby through breast milk or antibodies received through an injection. This type of immunity provides immediate protection but is temporary, lasting only a few weeks or months.

Clarify the misconception: Active immunity does not provide immediate protection; it takes time for the immune system to respond and produce antibodies. Passive immunity, on the other hand, provides immediate protection because the antibodies are already formed.

Summarize the key differences: Active immunity is acquired through vaccination or natural infection and involves the body's own production of antibodies, while passive immunity is acquired through the transfer of antibodies from another source and provides temporary protection.