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

2. Cell Chemistry & Cell Components

Introduction to the Cytoskeleton

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to the Cytoskeleton

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Multiple Choice

What protein fibers help form the framework of structural support for cells?

Microtubules

Collagen fibers

Elastin fibers

Actin filaments

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Verified step by step guidance

Understand the role of protein fibers in providing structural support to cells. These fibers are part of the cytoskeleton, which maintains cell shape, secures organelles in specific positions, and allows cells to move.

Identify the different types of protein fibers mentioned: microtubules, collagen fibers, elastin fibers, and actin filaments. Each of these fibers has distinct functions and locations within the body.

Microtubules are part of the cytoskeleton and are involved in maintaining cell shape, enabling intracellular transport, and facilitating cell division. They are composed of tubulin proteins.

Collagen fibers are extracellular matrix components that provide tensile strength and structural support to tissues such as skin, tendons, and bones. They are not part of the cytoskeleton within cells.

Actin filaments, also known as microfilaments, are part of the cytoskeleton and play a role in maintaining cell shape, enabling cell movement, and muscle contraction. They are composed of actin proteins.