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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

6. Bones & Skeletal Tissue

Gross Anatomy of Bone: Bone Marrow

Anatomy & Physiology

6. Bones & Skeletal Tissue

Gross Anatomy of Bone: Bone Marrow

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Multiple Choice

What substance fills the hollow cavity of most bones?

Periosteum

Compact bone

Red bone marrow

Yellow bone marrow

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Verified step by step guidance

Understand the structure of a typical long bone, which includes the diaphysis (shaft) and the epiphyses (ends).

Recognize that the hollow cavity within the diaphysis of long bones is known as the medullary cavity.

Identify the types of bone marrow: red bone marrow, which is involved in hematopoiesis (blood cell production), and yellow bone marrow, which primarily stores fat.

Recall that in adults, the medullary cavity of long bones is typically filled with yellow bone marrow, while red bone marrow is found in the epiphyses and in flat bones.

Conclude that the substance filling the hollow cavity of most adult long bones is yellow bone marrow, which serves as an energy reserve due to its high fat content.