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

Which body system is primarily responsible for preparing food for absorption into the bloodstream?

Digestive system

Respiratory system

Nervous system

Circulatory system

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Verified step by step guidance

Step 1: Begin by identifying the primary function of each body system listed in the options. For example, the digestive system is responsible for breaking down food into nutrients that can be absorbed into the bloodstream.

Step 2: Understand the role of the digestive system in food processing. It includes mechanical digestion (e.g., chewing) and chemical digestion (e.g., enzymatic breakdown of macromolecules).

Step 3: Compare the digestive system's function to the other systems listed. The respiratory system is involved in gas exchange (oxygen and carbon dioxide), the nervous system controls and coordinates body activities, and the circulatory system transports nutrients, gases, and waste products.

Step 4: Focus on the keyword 'preparing food for absorption into the bloodstream.' This is a direct reference to the digestive system's role in breaking down food into absorbable molecules like glucose, amino acids, and fatty acids.

Step 5: Conclude that the digestive system is the correct answer because it is the system specifically designed to process food and prepare nutrients for absorption into the bloodstream.