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 the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

The lymph tissues found within the walls of the small intestine are called:

Tonsils

Lymph nodes

Peyer's patches

Thymus

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of the small intestine and its role in the immune system. The small intestine contains specialized lymphatic tissues that help protect the body from pathogens entering through the digestive tract.

Step 2: Learn about Peyer's patches, which are clusters of lymphoid tissue found in the walls of the small intestine, particularly in the ileum. They play a crucial role in monitoring intestinal bacteria and generating immune responses.

Step 3: Differentiate Peyer's patches from other lymphatic structures such as tonsils, lymph nodes, and the thymus. Tonsils are located in the throat, lymph nodes are distributed throughout the body, and the thymus is located in the chest and is involved in T-cell maturation.

Step 4: Recognize that Peyer's patches are unique to the small intestine and are specifically adapted to the gut environment, making them the correct answer in this context.

Step 5: Review the function of Peyer's patches in the immune system, emphasizing their role in detecting antigens and initiating immune responses to protect the body from harmful microorganisms in the digestive tract.