The boiler generates high pressure steam by transfering the heat of Combustion in various heat transfer sections. This part of the article series briefly describes the flow and arrangement of the heat transfer sections in a boiler. In line diagrams help make the concept clear.
Abnormalities found within vertebral bones are called transitional vertebrae. The spinal cord runs through the middle of the human spine. Chiropractic manipulation may help treat problems caused by misaligned vertebrae. The tailbone, or coccyx, is the lowest segment of the spinal column.
Spondylolysis/Spondylolisthesis. Spondylolysis refers to a defect in one of the vertebra in the lower back, generally the last vertebra of the lumbar spine. The area of the vertebra called the pedicle is affected. The pedicle is part of the bony ring that protects the spinal nerves. The pedicle also connects the vertebral body to the facet joints. When a spondylolysis is present, the back part of the vertebra and the facet joints simply are not connected to the body - except by soft tissue.