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 of the following statements best characterizes bone remodeling?

It involves only the removal of old bone tissue without new bone formation.

It only occurs during childhood growth and stops in adulthood.

It is a process exclusive to the repair of bone fractures.

It is a continuous process involving both bone resorption and bone deposition.

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Verified step by step guidance

Understand the concept of bone remodeling: Bone remodeling is a dynamic and continuous process that occurs throughout life, involving the removal of old or damaged bone tissue (bone resorption) and the formation of new bone tissue (bone deposition). This process helps maintain bone strength and mineral homeostasis.

Clarify the role of osteoclasts and osteoblasts: Osteoclasts are specialized cells responsible for breaking down and resorbing old bone tissue, while osteoblasts are responsible for forming new bone tissue. These two cell types work in coordination during the remodeling process.

Recognize the triggers for bone remodeling: Bone remodeling can be influenced by mechanical stress (e.g., weight-bearing activities), hormonal changes (e.g., parathyroid hormone and calcitonin), and calcium levels in the blood. It is not limited to childhood growth or fracture repair but occurs continuously in adults as well.

Evaluate the incorrect statements: The first statement is incorrect because bone remodeling involves both resorption and deposition, not just removal. The second statement is incorrect because remodeling continues into adulthood. The third statement is incorrect because remodeling is not exclusive to fracture repair; it is a normal physiological process.

Identify the correct statement: The correct characterization of bone remodeling is that it is a continuous process involving both bone resorption and bone deposition, ensuring the maintenance of healthy bone structure and function.