ANATOMY

Detailed explanation-1: -Between the rings of matrix, the bone cells (osteocytes) are located in spaces called lacunae. Small channels (canaliculi) radiate from the lacunae to the osteonic (haversian) canal to provide passageways through the hard matrix.

Detailed explanation-2: -It helps the bone cells to receive food and oxygen and also to eliminate waste materials.

Detailed explanation-3: -Osteocytes derive from osteoblasts, or bone-forming cells, and are essentially osteoblasts surrounded by the products they secreted. Cytoplasmic processes of the osteocyte extend away from the cell toward other osteocytes in small channels called canaliculi.

Detailed explanation-4: -Together, the osteocyte lacunae and canaliculi comprise the lacunocanalicular system. This system allows for the flow of canalicular fluid in the lacunocanalicular space that carries nutrients and signaling factors to and from the osteocytes via the circulation.

Detailed explanation-5: -Each lacuna is occupied during life by a branched cell, termed an osteocyte, bone-cell or bone-corpuscle. Lacunae are connected to one another by small canals called canaliculi. A lacuna never contains more than one osteocyte.