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

In which part of a child's bones is red bone marrow primarily found?

Only in the periosteum

Exclusively in flat bones

Only in the epiphyses of long bones

In the medullary cavities of long bones

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Verified step by step guidance

Understand the function of red bone marrow: Red bone marrow is responsible for hematopoiesis, the process of producing blood cells, including red blood cells, white blood cells, and platelets.

Learn about the anatomy of long bones: Long bones consist of several parts, including the diaphysis (shaft), epiphyses (ends), and medullary cavity (central hollow region).

Recognize the location of red bone marrow in children: In children, red bone marrow is found in the medullary cavities of long bones, as their bones are actively producing blood cells to support growth and development.

Differentiate between red and yellow bone marrow: As children grow, red bone marrow in the medullary cavities is gradually replaced by yellow bone marrow, which primarily stores fat. However, red bone marrow remains in certain areas like flat bones and the epiphyses of long bones in adults.

Clarify why other options are incorrect: The periosteum is a fibrous membrane covering the outer surface of bones and does not contain red bone marrow. Flat bones do contain red bone marrow, but the question specifies long bones. The epiphyses of long bones contain red bone marrow in adults, but in children, the medullary cavities are the primary site.