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 hormones is produced by the skin?

Insulin

Calcitriol

Adrenaline

Thyroxine

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Verified step by step guidance

Understand the role of the skin in hormone production. The skin is involved in the synthesis of certain hormones, particularly those related to calcium regulation.

Identify the hormone related to calcium regulation. Calcitriol is the active form of vitamin D, which is crucial for calcium homeostasis in the body.

Learn how calcitriol is produced. The skin synthesizes vitamin D3 when exposed to sunlight, specifically UVB radiation. This vitamin D3 is then converted into calcitriol through processes in the liver and kidneys.

Differentiate between the hormones listed. Insulin, adrenaline, and thyroxine are not produced by the skin. Insulin is produced by the pancreas, adrenaline by the adrenal glands, and thyroxine by the thyroid gland.

Conclude that calcitriol is the hormone produced by the skin, as it is involved in the synthesis pathway starting from vitamin D3 production in the skin.