Outline definition, the line by which a figure or object is defined or bounded; contour. See more.
There are three special types of cells that are found only in the bone. These cell names all start with OSTEO because that is the Greek word for bone. OSTEOCLASTS are large cells that dissolve the bone. They come from the bone marrow and are related to white blood cells.
Osteoblast (from the Greek combining forms for  bone , á½ÏÏÎ­Î¿-, osteo-and Î²Î»Î±ÏÏÎ¬Î½Ï, blastanÅ germinate) are cells with single nuclei that synthesize bone.uring active bone formation, the surface layer of osteoblasts consists of cuboidal cells, called active osteoblasts. When the bone-forming unit is not actively synthesizing bone, the surface osteoblasts are flattened and are called inactive osteoblasts.