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 lymphoid organ produces hormones that direct the maturation of T lymphocytes?

Spleen

Lymph nodes

Thymus

Bone marrow

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Verified step by step guidance

Step 1: Understand the role of T lymphocytes in the immune system. T lymphocytes, or T cells, are a type of white blood cell that play a critical role in adaptive immunity by identifying and attacking infected or abnormal cells.

Step 2: Learn about the maturation process of T lymphocytes. T cells originate in the bone marrow but require further maturation to become functional. This maturation process involves the development of specific receptors that allow T cells to recognize antigens.

Step 3: Identify the lymphoid organ responsible for T cell maturation. The thymus is the primary organ where immature T cells undergo maturation and differentiation. It produces hormones such as thymosin, which are essential for this process.

Step 4: Compare the thymus to other lymphoid organs. While the spleen and lymph nodes are involved in filtering blood and lymph and housing mature immune cells, they do not produce hormones for T cell maturation. Bone marrow is where T cells originate but does not direct their maturation.

Step 5: Conclude that the thymus is the correct answer based on its unique function of producing hormones that guide the maturation of T lymphocytes.