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 is the Estimated Average Requirement (EAR) in the context of human nutrition?

The maximum daily nutrient intake level that is unlikely to cause adverse health effects.

The minimum daily nutrient intake level required to prevent deficiency diseases.

The average daily nutrient intake level estimated to meet the requirement of half the healthy individuals in a particular life stage and gender group.

The average daily nutrient intake level sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals.

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Verified step by step guidance

Understand the concept of Estimated Average Requirement (EAR) in human nutrition. EAR is a dietary reference value used to assess the nutrient intake of populations.

Recognize that EAR is not the maximum or minimum daily nutrient intake level. It is specifically the average daily intake level estimated to meet the needs of half the healthy individuals in a specific group.

Identify the purpose of EAR, which is to help in planning and assessing the diets of groups rather than individuals, ensuring that the nutrient needs of the population are met.

Differentiate EAR from other dietary reference values such as Recommended Dietary Allowance (RDA), which is the average daily intake level sufficient to meet the nutrient requirements of nearly all (97-98%) healthy individuals.

Consider the application of EAR in nutritional studies and policy-making, where it helps in understanding the nutrient needs of different demographic groups based on life stage and gender.