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 occurs during a primary immune response?

The response is faster and more robust than a secondary immune response.

The body produces memory cells specific to the antigen.

Antibodies are produced at the same rate as during a secondary response.

The immune system immediately recognizes and destroys the pathogen.

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Verified step by step guidance

Understand the concept of a primary immune response: It is the body's initial response to a specific antigen when it is encountered for the first time.

Recognize that during a primary immune response, the immune system is exposed to a new pathogen, and it takes time to identify and respond to the antigen.

Identify that during this response, the body produces specific antibodies and memory cells that are tailored to the antigen. These memory cells are crucial for faster responses in future encounters with the same antigen.

Note that the primary immune response is generally slower and less robust compared to a secondary immune response, which benefits from the presence of memory cells.

Clarify that the immune system does not immediately recognize and destroy the pathogen during the primary response; this immediate recognition is characteristic of a secondary immune response due to the presence of memory cells.