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

4. Tissues & Histology

Introduction to Connective Tissue

Anatomy & Physiology

4. Tissues & Histology

Introduction to Connective Tissue

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Multiple Choice

Ligaments are very strong but resistant to stretch. Which protein fiber most likely predominates in their structure?

Collagen fibers

Keratin fibers

Elastic fibers

Reticular fibers

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Verified step by step guidance

Understand the function of ligaments: Ligaments connect bones to other bones and provide stability to joints. They are designed to resist stretching and maintain structural integrity under tension.

Review the properties of protein fibers: Collagen fibers are known for their tensile strength and resistance to stretching, making them ideal for structures like ligaments. Elastic fibers allow tissues to stretch and recoil, keratin fibers are found in skin and hair, and reticular fibers form supportive networks in soft tissues.

Match the properties of ligaments to the protein fiber: Since ligaments are strong and resistant to stretch, the predominant protein fiber must have high tensile strength and low elasticity. This aligns with the properties of collagen fibers.

Eliminate incorrect options: Keratin fibers are not found in ligaments, elastic fibers are too stretchy for ligament function, and reticular fibers are not designed for tensile strength. Collagen fibers are the most suitable choice.

Conclude the reasoning: Based on the structural and functional requirements of ligaments, collagen fibers are the predominant protein fiber in their composition.