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

6. Bones & Skeletal Tissue

Gross Anatomy of Bone: Compact and Spongy Bone

Anatomy & Physiology

6. Bones & Skeletal Tissue

Gross Anatomy of Bone: Compact and Spongy Bone

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Multiple Choice

Which part of a long bone is composed primarily of compact bone?

Medullary cavity

Articular cartilage

Diaphysis

Epiphysis

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Verified step by step guidance

Understand the structure of a long bone: A long bone consists of several parts, including the diaphysis, epiphysis, medullary cavity, and articular cartilage. Each part has distinct characteristics and functions.

Learn about compact bone: Compact bone is dense and strong, designed to support weight and withstand stress. It is primarily found in the outer layer of bones.

Focus on the diaphysis: The diaphysis is the shaft or central part of a long bone. It is composed primarily of compact bone, which provides structural support and strength.

Contrast with other parts: The epiphysis (ends of the bone) contains spongy bone and is covered by articular cartilage to reduce friction in joints. The medullary cavity is the hollow space within the diaphysis that contains bone marrow.

Conclude that the diaphysis is the correct answer: Based on the anatomy of a long bone, the diaphysis is the part composed primarily of compact bone, distinguishing it from the other options provided.