xDSL - Computer Definition. Referring to any of a group of broadband digital access technologies operating over embedded unshielded twisted pair (UTP) telco local loops. xDSL technologies employ sophisticated compression algorithms and multiplexing techniques to derive performance that often exceeds 1 Mbps over a voice grade local loop. Most DSL technologies support simultaneous voice and high speed Internet access, and a number support video, as well.
Osseous structures means bony structures and in thorax it includes ribs,vertebra, clavicle. It is normal in your case. There is no abnormality in bones. There is some problem in perfusion study and in your case it is due to ischemic(decreased blood supply to part of heart)insult.
A secondary ossification center is the area of ossification that appears after the primary ossification center has already appeared-most of which appear during the postnatal and adolescent years. Most bones have more than one secondary ossification center. In long bones, the secondary centres appear in the epiphyses.he first step in ossification of the cartilage is that the cartilage cells, at the point where ossification is commencing and which is termed an ossification center, enlarge and arrange themselves in rows.