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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 Heart2h 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

20. The Lymphatic System

Secondary Lymphoid Organs: Lymph Nodes

Anatomy & Physiology

20. The Lymphatic System

Secondary Lympoid Organs: Lymph Nodes

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Multiple Choice

While all lymphoid organs function in immunity, only __________ filter(s) lymph.

tonsils

Peyer's patches

lymph nodes

MALT

the spleen

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Verified step by step guidance

Understand the role of lymphoid organs in the immune system. Lymphoid organs are part of the lymphatic system and play a crucial role in defending the body against pathogens.

Identify the primary function of lymph nodes. Lymph nodes are small, bean-shaped structures that filter lymph, a fluid containing white blood cells, which helps in trapping and destroying pathogens.

Differentiate between the various lymphoid organs listed: tonsils, Peyer's patches, MALT (Mucosa-associated lymphoid tissue), the spleen, and lymph nodes.

Recognize that while all these organs contribute to immunity, lymph nodes are specifically responsible for filtering lymph. They act as filters by trapping foreign particles and pathogens.

Conclude that lymph nodes are the correct answer because they are the only lymphoid organs that directly filter lymph, unlike the other organs listed.