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

21. The Immune System

Introduction to the Immune System

Anatomy & Physiology

21. The Immune System

Introduction to the Immune System

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Multiple Choice

Which organ plays specialized roles in both the lymphatic and immune systems?

Pancreas

Spleen

Kidney

Liver

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Verified step by step guidance

Step 1: Begin by understanding the roles of the lymphatic and immune systems. The lymphatic system is responsible for maintaining fluid balance, absorbing fats, and supporting immune function. The immune system defends the body against pathogens and foreign substances.

Step 2: Review the functions of each organ listed in the question. For example, the pancreas is primarily involved in digestion and blood sugar regulation, the kidney filters blood and regulates fluid balance, and the liver processes nutrients and detoxifies substances.

Step 3: Focus on the spleen, which is a specialized organ that plays a dual role. In the lymphatic system, it filters blood and removes old or damaged red blood cells. In the immune system, it helps produce and store white blood cells and antibodies, which are crucial for fighting infections.

Step 4: Compare the spleen's functions to the other organs listed. None of the other organs (pancreas, kidney, liver) have direct roles in both the lymphatic and immune systems.

Step 5: Conclude that the spleen is the correct answer because it uniquely contributes to both the lymphatic and immune systems through its filtering and immune response functions.