part_of 'bone' BTO:0000140 Bones EV:0100140 FMAID:30317 James Malone MAT:0000299 NCIt:C12366 Osseous Portion of tissue which is calcified connective tissue making up the structural elements of the skeletal system. SAEL:10 TAO:0001514 The hard form of connective tissue that constitutes the majority of the skeleton of most vertebrates; it consists of an organic component (the cells and matrix) and an inorganic, or mineral, component; the matrix contains a framework of collagenous fibers and is impregnated with the mineral component, chiefly calcium phosphate (85 per cent) and calcium carbonate (10 per cent), which imparts the quality of rigidity to bone. URI: http://www.ebi.ac.uk/cellline#bone XAO:0000169 osseous tissue organism part skeleton structure