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

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

Anatomy & Physiology

1. Introduction to Anatomy & Physiology

Introduction to Organ Systems

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Multiple Choice

Which organ systems are necessary for the production of vitamin D?

Circulatory and Lymphatic systems

Nervous and Muscular systems

Digestive and Respiratory systems

Integumentary and Endocrine systems

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Verified step by step guidance

Understand that vitamin D production in the body involves multiple organ systems working together.

Recognize that the integumentary system, which includes the skin, plays a crucial role in the initial step of vitamin D synthesis. When the skin is exposed to sunlight, specifically UVB radiation, it converts 7-dehydrocholesterol to previtamin D3.

Acknowledge that the previtamin D3 undergoes a heat-induced transformation to become vitamin D3 (cholecalciferol) in the skin.

Identify the role of the endocrine system, particularly the liver and kidneys, in further processing vitamin D3. The liver converts vitamin D3 into 25-hydroxyvitamin D, and the kidneys convert it into the active form, 1,25-dihydroxyvitamin D (calcitriol).

Conclude that the integumentary and endocrine systems are essential for the production and activation of vitamin D, as they facilitate its synthesis, conversion, and regulation within the body.