Diaphysis
Shaft/central part of long bone
The diaphysis is the long, cylindrical shaft of a bone in the human body. It is composed of dense, compact bone tissue that gives it strength and rigidity. The diaphysis is typically the main shaft of a long bone, and it can vary in length and diameter depending on the bone.
The outer layer of the diaphysis is covered by a thin layer of connective tissue called the periosteum, which is responsible for supplying the bone with blood vessels and nerves. Beneath the periosteum is the dense bone tissue that makes up the bulk of the diaphysis. This tissue is arranged in concentric rings called osteons, which contain bone cells called osteocytes that are surrounded by a matrix of collagen and inorganic mineral salts such as calcium and phosphate.
Overall, the diaphysis is an important component of long bones in the human body, providing support, strength, and flexibility for movement.
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