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

In which organ does almost all enzymatic digestion of food occur?

Stomach

Large intestine

Small intestine

Esophagus

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Verified step by step guidance

Begin by understanding the role of each organ listed in the options. The stomach primarily focuses on mechanical digestion and the initial breakdown of proteins through the enzyme pepsin.

Consider the function of the large intestine, which is mainly involved in absorbing water and electrolytes, and does not play a significant role in enzymatic digestion.

The esophagus is responsible for transporting food from the mouth to the stomach and does not contribute to enzymatic digestion.

Focus on the small intestine, which is the primary site for enzymatic digestion. It receives digestive enzymes from the pancreas and bile from the liver to break down carbohydrates, proteins, and fats.

Conclude that the small intestine is the organ where almost all enzymatic digestion occurs, as it is equipped with enzymes and structures like villi to maximize nutrient absorption.