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

5. Integumentary System

Introduction to the Integumentary System

Anatomy & Physiology

5. Integumentary System

Introduction to the Integumentary System

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Multiple Choice

Which of the following statements accurately describes melanin's function in the integumentary system?

Melanin regulates body temperature by controlling sweat production.

Melanin provides a waterproof barrier to the skin.

Melanin is responsible for the production of vitamin D.

Melanin protects the skin from ultraviolet radiation.

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Verified step by step guidance

Understand the role of melanin in the integumentary system: Melanin is a pigment produced by cells called melanocytes, which are found in the skin.

Recognize that melanin's primary function is to protect the skin from ultraviolet (UV) radiation. It absorbs and dissipates UV rays, reducing the risk of DNA damage that can lead to skin cancer.

Differentiate between the functions of melanin and other components of the integumentary system: For example, sweat glands regulate body temperature, and the skin's outer layer provides a waterproof barrier.

Acknowledge that melanin does not play a role in vitamin D production. Instead, UV radiation is necessary for the synthesis of vitamin D in the skin.

Conclude that the statement 'Melanin protects the skin from ultraviolet radiation' accurately describes melanin's function in the integumentary system.