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

Overview of Lymphoid Organs

Anatomy & Physiology

20. The Lymphatic System

Overview of Lymphoid Organs

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Multiple Choice

Which of the following is/are the major lymphoid organ(s) that "train(s)" T lymphocytes to become immunocompetent?

tonsils

Peyer's patches

MALT

thymus

spleen

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Verified step by step guidance

Understand the role of T lymphocytes: T lymphocytes, or T cells, are a type of white blood cell that play a central role in cell-mediated immunity. They need to be trained to recognize and respond to pathogens effectively.

Identify the process of becoming immunocompetent: Immunocompetence is the ability of the immune system to recognize and respond to antigens. T cells become immunocompetent through a process of maturation and selection.

Recognize the primary lymphoid organs: The primary lymphoid organs are where lymphocytes are formed and mature. For T cells, this organ is the thymus.

Differentiate between primary and secondary lymphoid organs: Secondary lymphoid organs, such as the spleen, tonsils, Peyer's patches, and MALT (mucosa-associated lymphoid tissue), are sites where immune responses are initiated, but they do not train T cells.

Conclude that the thymus is the organ responsible for training T lymphocytes: The thymus is the major lymphoid organ where T cells mature and become immunocompetent, distinguishing it from other lymphoid tissues that do not perform this function.