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

How is lymph moved through lymphatic vessels?

By the contraction of smooth muscles in the lymphatic vessel walls

By the pumping action of the heart

By the gravitational pull on the lymph

By the peristaltic movement of the intestines

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Verified step by step guidance

Understand the structure and function of the lymphatic system: The lymphatic system is a network of vessels and nodes that transport lymph, a fluid containing white blood cells, throughout the body.

Identify the mechanisms of lymph movement: Lymph is moved through lymphatic vessels primarily by the contraction of smooth muscles in the vessel walls, which helps propel the lymph forward.

Consider the role of external factors: Unlike blood circulation, lymph movement is not directly driven by the heart's pumping action. Instead, it relies on factors such as muscle contractions and pressure changes during breathing.

Evaluate the incorrect options: Gravitational pull does not significantly affect lymph movement, and peristaltic movement of the intestines is related to the digestive system, not the lymphatic system.

Conclude with the correct mechanism: The contraction of smooth muscles in the lymphatic vessel walls is the primary method by which lymph is moved through the lymphatic system.