aiding the cause or policy or interests of. 1  blessing, 2  help, 3  protagonism, 4  assist, 5  advocacy, 6  approving, 7  adhesion, 8  endorsement, 9  attachment, 10  reassurance, 11  approval, 12  adherence, 13  aid, 14  sponsorship, 15  assistance, 16  indorsement. 17  disapproval.
components, namely the mineral crystals and the organic matrix, can be discerned. The organic matrix of bone consists primarily of a fibrous protein, collagen, and lesser amounts of other noncollagenous proteins (discussed later). In tooth, collagen is also the major organic constituent of dentin and cementum, but there is no collagen in enamel. Collagen is the same protein that gives flexibility to ligaments and ten-
Collagens are the most abundant protein in the ECM. In fact, collagen is the most abundant protein in the human body and accounts for 90% of bone matrix protein content. Collagens are present in the ECM as fibrillar proteins and give structural support to resident cells.