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 statements correctly describes a similarity and a difference between passive immunity and active immunity?

Both involve the direct transfer of antibodies, but active immunity provides longer-lasting protection than passive immunity.

Both provide immediate protection, but active immunity is acquired through vaccination, while passive immunity is acquired through natural infection.

Both provide protection against pathogens, but passive immunity involves the direct transfer of antibodies, while active immunity involves the production of antibodies by the host.

Both require the host to produce antibodies, but passive immunity is faster than active immunity.

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Verified step by step guidance

Understand the definitions of passive and active immunity: Passive immunity involves the transfer of antibodies from another source, such as through maternal antibodies or antibody injections. Active immunity involves the host's immune system producing antibodies in response to exposure to a pathogen or through vaccination.

Identify the key characteristics of passive immunity: It provides immediate protection because the antibodies are directly transferred to the host. However, this type of immunity is temporary as the transferred antibodies are eventually degraded.

Identify the key characteristics of active immunity: It requires the host's immune system to recognize the pathogen and produce antibodies, which takes time. However, it usually results in longer-lasting protection due to the development of immunological memory.

Compare the two types of immunity: Both passive and active immunity provide protection against pathogens. The main difference is that passive immunity involves the direct transfer of antibodies, while active immunity involves the host's production of antibodies.

Evaluate the statements given in the problem: The correct statement is the one that accurately describes both the similarity (protection against pathogens) and the difference (method of antibody acquisition) between passive and active immunity.