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 type of cell is stimulated by the hormones calcitriol and parathyroid hormone (PTH)?

Osteoblasts

Osteoclasts

Adipocytes

Chondrocytes

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Verified step by step guidance

Understand the role of calcitriol and parathyroid hormone (PTH) in the body. Calcitriol is the active form of vitamin D, and PTH is a hormone produced by the parathyroid glands. Both are involved in calcium homeostasis.

Recognize that calcitriol and PTH primarily function to increase blood calcium levels. They achieve this by acting on various target cells and tissues in the body.

Identify the types of cells involved in bone remodeling: osteoblasts, osteoclasts, adipocytes, and chondrocytes. Osteoblasts are responsible for bone formation, osteoclasts for bone resorption, adipocytes for fat storage, and chondrocytes for cartilage formation.

Determine which cell type is responsible for increasing blood calcium levels. Osteoclasts break down bone tissue, releasing calcium into the bloodstream, thus increasing blood calcium levels.

Conclude that osteoclasts are the cells stimulated by calcitriol and PTH to increase blood calcium levels, as they are responsible for bone resorption.