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

23. The Digestive System

Introduction to the Digestive System

Anatomy & Physiology

23. The Digestive System

Introduction to the Digestive System

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Multiple Choice

What substance is responsible for breaking down fat in fat-soluble vitamins in our bodies?

Lipase

Amylase

Bile

Pepsin

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Verified step by step guidance

Understand the role of fat-soluble vitamins: Fat-soluble vitamins (A, D, E, and K) require fat for their absorption and transport in the body.

Identify the function of bile: Bile is a digestive fluid produced by the liver and stored in the gallbladder. It contains bile acids, which are critical for the digestion and absorption of fats and fat-soluble vitamins.

Differentiate between enzymes and bile: Lipase and amylase are enzymes that break down fats and carbohydrates, respectively. Pepsin is an enzyme that breaks down proteins. Bile, however, is not an enzyme but a substance that emulsifies fats, making them easier to digest.

Recognize the process of emulsification: Bile acids in bile emulsify large fat globules into smaller droplets, increasing the surface area for lipase to act upon, facilitating the digestion and absorption of fats and fat-soluble vitamins.

Conclude the role of bile: Bile is essential for the breakdown and absorption of fats and fat-soluble vitamins, as it emulsifies fats, allowing enzymes like lipase to effectively digest them.