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

16. The Endocrine System

Introduction to the Endocrine System

Anatomy & Physiology

16. The Endocrine System

Introduction to the Endocrine System

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Multiple Choice

Which hormone stimulates osteoclasts and inhibits osteoblasts in bone tissue?

Insulin

Calcitonin

Aldosterone

Parathyroid hormone (PTH)

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Verified step by step guidance

Understand the role of osteoclasts and osteoblasts in bone tissue: Osteoclasts are responsible for breaking down bone tissue (bone resorption), while osteoblasts are responsible for building new bone tissue (bone formation).

Recognize the function of Parathyroid Hormone (PTH): PTH is secreted by the parathyroid glands and plays a critical role in calcium homeostasis by increasing blood calcium levels.

Learn how PTH affects osteoclasts: PTH stimulates osteoclast activity, leading to the breakdown of bone tissue and the release of calcium into the bloodstream.

Understand how PTH inhibits osteoblasts: PTH reduces the activity of osteoblasts, which decreases bone formation and further supports the increase in blood calcium levels.

Compare PTH with other hormones listed: Insulin regulates glucose metabolism, Calcitonin lowers blood calcium levels by inhibiting osteoclasts, and Aldosterone regulates sodium and potassium balance. None of these hormones stimulate osteoclasts and inhibit osteoblasts like PTH does.