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 key difference between the innate immune system and the adaptive immune system?

The innate immune system has memory and improves its response over time.

The adaptive immune system lacks specificity in targeting pathogens.

The adaptive immune system is the first line of defense against pathogens.

The innate immune system responds more quickly than the adaptive immune system.

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Verified step by step guidance

Understand the basic functions of the innate and adaptive immune systems. The innate immune system provides an immediate, non-specific response to pathogens, while the adaptive immune system provides a delayed, specific response.

Recognize that the innate immune system acts as the body's first line of defense, responding quickly to a wide range of pathogens without prior exposure.

Identify that the adaptive immune system is characterized by its ability to remember past infections, allowing for a more efficient response upon re-exposure to the same pathogen.

Note that the adaptive immune system is highly specific, targeting particular pathogens with precision, unlike the innate immune system which is more generalized.

Conclude that the key difference highlighted in the problem is the speed of response: the innate immune system responds more quickly than the adaptive immune system, which takes time to develop a targeted response.