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

What is Anatomy & Physiology?

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

What is Anatomy & Physiology?

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Multiple Choice

A group of body structures which perform one or more vital functions for the body is called a:

organelle

tissue

organ system

cell

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Verified step by step guidance

Step 1: Begin by understanding the hierarchy of structural organization in the human body. The levels include: chemical level (atoms and molecules), cellular level (cells), tissue level (groups of similar cells), organ level (structures composed of multiple tissues), organ system level (groups of organs working together), and organism level (the complete human body).

Step 2: Define each term provided in the problem: 'organelle' refers to specialized structures within a cell that perform specific functions; 'tissue' is a group of similar cells that work together to perform a specific function; 'cell' is the basic structural and functional unit of life; and 'organ system' is a group of organs that work together to perform one or more vital functions.

Step 3: Analyze the question, which asks for the term describing a group of body structures that perform one or more vital functions. This description aligns with the definition of an 'organ system,' as it involves multiple organs working together to sustain life.

Step 4: Compare the definitions of the other options ('organelle,' 'tissue,' and 'cell') to ensure they do not fit the description provided in the question. For example, a tissue is a smaller structural unit and does not encompass multiple organs.

Step 5: Conclude that the correct answer is 'organ system,' as it matches the description of a group of body structures performing vital functions for the body.