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

At which level of organization do tissues exist within the human body?

Organ level

Organismal level

Cellular level

Tissue level

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Verified step by step guidance

Begin by understanding the hierarchy of structural organization in the human body. The human body is organized into several levels, starting from the smallest unit, the chemical level, and progressing to the organismal level.

Recognize that the cellular level is where cells, the basic units of life, exist. Cells are specialized to perform specific functions and are the building blocks of tissues.

Identify the tissue level as the next level of organization. Tissues are groups of similar cells that work together to perform a specific function. There are four basic types of tissues in the human body: epithelial, connective, muscle, and nervous tissues.

Understand that the organ level follows the tissue level. Organs are structures composed of two or more tissue types that work together to perform specific, complex functions.

Finally, acknowledge the organismal level, which is the highest level of organization. It encompasses all the organ systems working together to maintain life and health in the human body.