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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Small secondary lymphoid organs, which cluster along lymphatic vessels, are termed ________.

spleens

thymus glands

tonsils

lymph nodes

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Verified step by step guidance

Step 1: Understand the role of secondary lymphoid organs in the immune system. These organs are responsible for filtering lymph and housing immune cells that help fight infections.

Step 2: Recall the anatomical locations and functions of the listed options: spleens, thymus glands, tonsils, and lymph nodes. For example, the spleen filters blood, the thymus is involved in T-cell maturation, and tonsils are located in the pharyngeal region to trap pathogens.

Step 3: Focus on the term 'cluster along lymphatic vessels.' This description matches lymph nodes, which are small, bean-shaped structures located along lymphatic vessels and act as filters for lymph.

Step 4: Eliminate incorrect options based on their functions and locations. Spleens and thymus glands are not clustered along lymphatic vessels, and tonsils are located in the throat area rather than along lymphatic vessels.

Step 5: Conclude that the correct answer is lymph nodes, as they are small secondary lymphoid organs that cluster along lymphatic vessels and play a key role in filtering lymph and housing immune cells.