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 a characteristic of adaptive immunity?

It is non-specific and acts as a first line of defense.

It has immunological memory.

It is primarily mediated by physical barriers.

It provides immediate defense against pathogens.

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Verified step by step guidance

Understand the concept of adaptive immunity: Adaptive immunity is a specific defense mechanism that involves the recognition of specific antigens and the development of immune responses tailored to those antigens.

Differentiate between innate and adaptive immunity: Innate immunity is non-specific and acts as the first line of defense, while adaptive immunity is specific and involves the development of immunological memory.

Identify the key feature of adaptive immunity: One of the hallmark characteristics of adaptive immunity is its ability to remember past infections, which is known as immunological memory.

Evaluate the options given in the problem: Consider each option and determine which one aligns with the characteristics of adaptive immunity.

Select the correct characteristic: Based on the understanding that adaptive immunity has immunological memory, identify this as the correct answer from the options provided.