EVERYDAY SCIENCE

Detailed explanation-1: -The osteon consists of a central canal called the osteonic (haversian) canal, which is surrounded by concentric rings (lamellae) of matrix. Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae.

Detailed explanation-2: -The layers of bony matrix around the central canal of an osteon are called lamellae. The lamella is produced by osteoblasts during ossification which provides strength and structure to the bone tissue.

Detailed explanation-3: -The basic microscopic unit of bone is an osteon (or Haversian system). Osteons are roughly cylindrical structures that can measure several millimeters long and around 0.2 mm in diameter. Each osteon consists of a lamellae of compact bone tissue that surround a central canal (Haversian canal).

Detailed explanation-4: -Every osteon is made up of a central canal (which contains nerves and blood vessels), perforating canals, lamellae (configurations of bone matrix), and osteocyte-containing lacunae (holes). All of these are arranged concentrically around the central canal.

Detailed explanation-5: -Bone tissue is a specialized connective tissue composed of organic and inorganic fractions. The organic fraction consists of specialized bone cells, including osteoclasts, osteoblasts, and osteocytes, and of an extracellular matrix mainly composed of type I collagen, osteopontin, osteocalcin, and proteoglycans.