What is the shaft of a long bone called?

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Multiple Choice

What is the shaft of a long bone called?

Explanation:
Diaphysis. The shaft of a long bone is the diaphysis, a long cylindrical region built mainly from compact bone to provide strength with minimal weight. It surrounds the central medullary cavity, which houses bone marrow. The ends of the bone are the epiphyses, and the outer covering is the periosteum. This setup gives the bone its structural integrity while allowing space for marrow and blood supply.

Diaphysis. The shaft of a long bone is the diaphysis, a long cylindrical region built mainly from compact bone to provide strength with minimal weight. It surrounds the central medullary cavity, which houses bone marrow. The ends of the bone are the epiphyses, and the outer covering is the periosteum. This setup gives the bone its structural integrity while allowing space for marrow and blood supply.

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