osteocytes Bone cells that lay down new bone; found in the concentric layers of compact bone. Bone cell, a type of connective tissue. PICTURE
osteoporosis A disorder in which the mineral portion of bone is lost, making the bone weak and brittle; occurs most commonly in postmenopausal women.
osteocyte [Gr. osteon - bone; Gr. kytos - a hollow vessel, modern usage: cyt- denotes a cell] A mature bone cell derived from an osteoblast and located within a lacuna.
Osteocyte a bone cell
(osteo = bone; cyto = cell)
Ovary "female" plant structure in which female gametophytes are produced and seeds develop or female animal structure in which eggs form
(ova = egg) ...
Osteocytes are differentiated mature osteoblasts formed after these cells are completely surrounded by the bone matrix. Osteocytes have the function of supporting the tissue.
osteocyte A bone cell that is characteristic of adult bone, has developed from an osteoblast, and is isolated in a lacuna of the bone substance.
osteon Unit of bone structure; Haversian system.
Bone is also made up of a matrix and lacunae inhabited by cells, ~s, which secrete the matrix.
Now within it you'll find ~s sitting in this tiny little caves and they're being fed by these arteries and veins that run through the middle of these canals so you'll have these concentric rings of bone being made by the ~s with blood vessels running up the central canal of these ...
Bone is first deposited as woven bone, in a disorganized structure with a high proportion of ~s in young and in healing injuries. Woven bone is weaker, with a small number of randomly oriented collagen fibers, but forms quickly.
~s originate from osteoblasts that have migrated into and become trapped and surrounded by bone matrix that they themselves produce. The spaces they occupy are known as lacunae.
Haversion system arrangement of compact bone consisting of ~s and matrix in cylinders of bone surrounding central haversion canals.
Helicotrema a tiny hole where compartments communicate at the tip of the cochlea.
Heparin a substance that prevents clotting under normal conditions.
One of many structural units of vertebrate bone, consisting of concentric layers of mineralized bone matrix surrounding lacunae, which contain ~s, and a central canal, which contains blood vessels and nerves.
See also: What is the meaning of Tissue, Cells, Bone, Cartilage, Trans?