ribonucleic acid, RNA (noun). (biochemistry) a long linear polymer of nucleotides found in the nucleus but mainly in the cytoplasm of a cell where it is associated with microsomes; it transmits genetic information from DNA to the cytoplasm and controls certain chemical processes in the cell.
Osteocytes â mature osteoblasts. Osteoclasts â bone-destroying cells. Compact bone A structural unit of a compact bone is called an osteon (or Haversian system). Osteon â cylindrical structure oriented parallel to bone's long axis.Osteon consists of hollow tubes, one inside the other, called lamella.steocytes â mature osteoblasts. Osteoclasts â bone-destroying cells. Compact bone A structural unit of a compact bone is called an osteon (or Haversian system). Osteon â cylindrical structure oriented parallel to bone's long axis.Osteon consists of hollow tubes, one inside the other, called lamella.
Answered by The Community. Making the world better, one answer at a time. The osteon is the structural unit of compact bone. Haversian system is a microscopic, structural unit of compact bone also called the osteon.The osteons are arranged in multiple layers or rings called concentric lamella.nswered by The Community. Making the world better, one answer at a time. The osteon is the structural unit of compact bone. Haversian system is a microscopic, structural unit of compact bone also called the osteon.