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

1. Introduction to Anatomy & Physiology

Levels of Organization

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Levels of Organization

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Multiple Choice

The entire digestive tract is an example of which organizational level in the human body?

Tissue

Organ

Organ system

Cellular

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Verified step by step guidance

Understand the levels of organization in the human body: The human body is organized into several levels, starting from the smallest (cellular) to the largest (organism). These levels are: cellular, tissue, organ, organ system, and organism.

Define the digestive tract: The digestive tract includes multiple organs such as the mouth, esophagus, stomach, intestines, and accessory organs like the liver and pancreas, all working together to perform digestion and nutrient absorption.

Identify the organizational level: Since the digestive tract involves multiple organs working together to achieve a common function (digestion and absorption), it is classified as an organ system.

Differentiate from other levels: A tissue is a group of similar cells performing a specific function, an organ is a structure made of multiple tissues working together, and the cellular level refers to individual cells. The digestive tract surpasses these levels as it involves multiple organs.

Conclude: The digestive tract is an example of an organ system because it includes multiple organs functioning together to perform a specific physiological task.