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 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

Which of the following options correctly represents the flow of lymph through a lymph node?

Afferent vessel > subcapsular sinus > trabecular sinus > medullary sinus > efferent vessel.

Afferent vessel > trabecular sinus > subcapsular sinus > medullary sinus > efferent vessel.

Efferent vessel > subcapsular sinus > trabecular sinus > medullary sinus > afferent vessel.

Afferent vessel > subcapsular sinus > medullary sinus > trabecular sinus > efferent vessel.

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Verified step by step guidance

Understand the structure of a lymph node: Lymph nodes are small, bean-shaped structures that filter lymph fluid. They contain sinuses and vessels that guide the flow of lymph.

Identify the entry point: Lymph enters the lymph node through afferent lymphatic vessels. These vessels bring lymph fluid into the node.

Trace the path through the sinuses: Once inside, lymph flows into the subcapsular sinus, which is located just beneath the capsule of the lymph node.

Follow the lymph through the node: From the subcapsular sinus, lymph moves into the trabecular sinus, which extends inward from the capsule, and then into the medullary sinus, located in the central part of the node.

Determine the exit point: After passing through the medullary sinus, lymph exits the lymph node via efferent lymphatic vessels, which carry the filtered lymph away from the node.