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 Biomolecules

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Biomolecules

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Multiple Choice

What is the primary function of elastin in connective tissue?

To facilitate nutrient transport

To allow tissues to resume their shape after stretching or contracting

To store energy

To provide tensile strength

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Verified step by step guidance

Understand the role of connective tissue: Connective tissue supports, binds, and protects tissues and organs in the body. It consists of various components, including cells, fibers, and ground substance.

Identify the types of fibers in connective tissue: The main types of fibers are collagen, elastin, and reticular fibers. Each has a distinct function and structure.

Focus on elastin: Elastin is a key protein in connective tissue that provides elasticity. It allows tissues to stretch and then return to their original shape, which is crucial for organs that undergo regular expansion and contraction, such as the lungs and arteries.

Differentiate elastin from other fibers: Unlike collagen, which provides tensile strength and rigidity, elastin is primarily responsible for elasticity. This distinction helps in understanding its unique function in connective tissue.

Apply this knowledge to the problem: Given the options, the primary function of elastin is to allow tissues to resume their shape after stretching or contracting, which aligns with its role in providing elasticity.