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

Which nutrient must enter the lymphatic system before entering the bloodstream?

Lipids

Proteins

Vitamins

Carbohydrates

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Verified step by step guidance

Understand the role of the lymphatic system in nutrient absorption. The lymphatic system is responsible for transporting certain nutrients from the digestive tract to the bloodstream.

Identify the types of nutrients that are absorbed directly into the bloodstream versus those that enter the lymphatic system first. Most nutrients, like carbohydrates, proteins, and water-soluble vitamins, are absorbed directly into the bloodstream.

Recognize that lipids, specifically long-chain fatty acids and monoglycerides, are packaged into chylomicrons in the intestinal cells. These chylomicrons are too large to enter the capillaries directly.

Learn that chylomicrons are absorbed into the lymphatic system through lacteals, which are specialized lymph vessels in the small intestine.

Finally, understand that the lymphatic system transports chylomicrons to the thoracic duct, where they enter the bloodstream at the subclavian vein, completing their journey from the digestive tract.