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

20. The Lymphatic System

Introduction to the Lymphatic System

Anatomy & Physiology

20. The Lymphatic System

Introduction to the Lymphatic System

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Multiple Choice

Which of the following is NOT part of a lymph node?

Medulla

Cortex

Trabeculae

Red pulp

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Verified step by step guidance

Step 1: Begin by understanding the anatomy of a lymph node. A lymph node is a small, bean-shaped structure that is part of the lymphatic system. It filters lymph and houses immune cells such as lymphocytes and macrophages.

Step 2: Identify the key regions of a lymph node. The lymph node is divided into the cortex and medulla. The cortex contains lymphoid follicles, while the medulla contains medullary cords and sinuses. Trabeculae are connective tissue structures that extend into the lymph node, providing support.

Step 3: Understand the term 'red pulp.' Red pulp is a component of the spleen, not the lymph node. It is involved in filtering blood and recycling old red blood cells, which is distinct from the lymph node's function of filtering lymph.

Step 4: Compare the options provided in the question. Medulla, cortex, and trabeculae are all parts of a lymph node, while red pulp is not. This makes red pulp the correct answer to the question.

Step 5: Conclude by reinforcing the distinction between the spleen and lymph nodes. The spleen contains red pulp and white pulp, while lymph nodes are structured with a cortex, medulla, and trabeculae for lymph filtration and immune response.