Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 39m
3. Energy & Cell Processes10h 8m
4. Tissues & Histology10h 3m
5. Integumentary System2h 28m
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 System3h 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

In which of the following areas are lymph nodes usually highly concentrated?

Feet.

Chest.

Hands.

Neck.

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Verified step by step guidance

Understand the function of lymph nodes: Lymph nodes are small, bean-shaped structures that are part of the lymphatic system. They filter lymph fluid and house immune cells that help fight infection.

Identify common locations of lymph nodes: Lymph nodes are typically found in clusters in areas where the body can effectively monitor and respond to pathogens. These areas include the neck, armpits, chest, abdomen, and groin.

Consider the anatomical significance of the neck: The neck is a crucial area for lymph nodes because it connects the head to the rest of the body, allowing for efficient monitoring of pathogens entering through the mouth, nose, and ears.

Compare the concentration of lymph nodes in the neck to other areas: While lymph nodes are present throughout the body, they are particularly concentrated in the neck due to its role in filtering lymph from the head and upper respiratory tract.

Conclude why the neck is the correct answer: Given the high concentration of lymph nodes in the neck, it is the most likely area among the options provided where lymph nodes are highly concentrated.