PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY PROF. P. MOTTA / DEPT. OF ANATOMY / UNIVERSITY "LA SAPIENZA", ROME / SCIENCE PHOTO LIBRARY
Cancellous bone. False-colour scanning electron micrograph of trabeculae in cancellous (spongy) bone tissue. Bone tissue is divided into compact and cancellous. The latter fills the interior of bones and the cavities between the trabeculae are occupied by bone marrow. Trabeculae are thin and composed of irregular lamellae of bone with lacunae containing osteocytes. Some of these lacunae are visible as tiny dark depressions. Osteblasts are the cells responsible for bone formation. Once they cease activity and become embedded in bone matrix they are called osteocytes. Magnification: x36 at 6x7cm size.
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