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 structures is a primary component of the lymphatic system?

Adrenal gland

Thyroid gland

Pancreas

Spleen

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Verified step by step guidance

Step 1: Understand the lymphatic system's primary function, which is to maintain fluid balance, defend against infections, and support immune responses. It consists of lymphatic vessels, lymph nodes, and lymphoid organs.

Step 2: Identify the primary components of the lymphatic system. These include the spleen, thymus, tonsils, lymph nodes, and lymphatic vessels. These structures are directly involved in filtering lymph and supporting immune function.

Step 3: Review the functions of the adrenal gland, thyroid gland, and pancreas. The adrenal gland is part of the endocrine system and produces hormones like adrenaline. The thyroid gland regulates metabolism, and the pancreas is involved in digestion and blood sugar regulation. None of these are part of the lymphatic system.

Step 4: Focus on the spleen's role in the lymphatic system. The spleen filters blood, removes old or damaged red blood cells, and helps produce and store white blood cells, which are crucial for immune defense.

Step 5: Conclude that the spleen is the correct answer because it is a primary lymphatic organ, unlike the adrenal gland, thyroid gland, or pancreas, which belong to other systems.