Diaphysis
shaft of a long bone; provides leverage
The diaphysis is the long, tubular shaft of a bone. It is the primary center of bone growth during prenatal development and childhood, and it provides structural support to the bone. The diaphysis is composed of compact bone tissue, which is a dense and strong type of bone tissue that resists twisting, bending, and compression. Inside the diaphysis, there is a hollow cavity called the medullary cavity, which contains bone marrow. The bone marrow is responsible for producing blood cells and platelets. The diaphysis is also surrounded by a thin layer of periosteum, which is a tough and fibrous membrane that contains blood vessels and nerves that supply the bone. Overall, the diaphysis plays a crucial role in maintaining the strength and integrity of the bone.
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