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

Which of the following best describes the characteristics of collagen and elastin in connective tissue?

Both collagen and elastin provide tensile strength and rigidity.

Collagen allows for elasticity, while elastin provides tensile strength.

Collagen provides tensile strength, while elastin allows for elasticity.

Both collagen and elastin are primarily involved in energy storage.

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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 is composed of various fibers, including collagen and elastin, which have distinct functions.

Identify the characteristics of collagen: Collagen is a protein that provides tensile strength to connective tissues. It is abundant in structures that require strength and rigidity, such as tendons, ligaments, and skin.

Identify the characteristics of elastin: Elastin is a protein that allows tissues to stretch and return to their original shape. It is found in tissues that require elasticity, such as the skin, lungs, and blood vessels.

Compare the functions of collagen and elastin: Collagen is responsible for providing tensile strength, which means it helps tissues resist stretching and tearing. Elastin, on the other hand, allows tissues to stretch and then return to their original form, providing elasticity.

Evaluate the given options: Based on the characteristics of collagen and elastin, the correct description is that collagen provides tensile strength, while elastin allows for elasticity. This aligns with their respective roles in connective tissue.