Spongy bone is always surrounded by:
Correct answer: A. Compact bone
- A. Compact bone
- B. Cartilage
- C. Osteoblast cells
- D. Osteoclast cells
Explanation
The spongy bone is usually surrounded by a shell of the compact bone which provides added strength and rigidity. Spongy bone is usually located at the ends of the long bones (the epiphyses), with the harder compact bone surrounding it. It is also found inside the vertebrae, in the ribs, in the skull and the bones of the joints. Spongy bone is softer and weaker than compact bone but is also more flexible.
This question appeared on the UHS MDCAT 2017 paper, which you can sit online with every answer explained.
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