4 | transportation finance briefing papers process are cyclical and occur incrementally over time, requiring sustained leader-ship over a number of years to achieve full implementation.Table 2.1 provides a snapshot of the state of performance measurement among 23 state DOTs that responded to a recent survey.
exists and is an alternate of . The pleural membrane is a double-layered serous membrane found in the thoracic cavity. The outer layer is called the parietal pleura and lines the thoracic wall, and the inner layer is called the visceral pleura and covers the lungs. The membranes produce lubricating serous fluid that causes them to adhere closely to one another.
The pleural membrane is thin, moist, slippery and has two layers. The outer, or parietal, pleura lines the inside of the rib cage and the diaphragm while the inner, visceral or pulmonary, layer covers the lungs. Between the two layers is the intrapleural space, which normally contains fluid secreted by the membranes.his article, the third in a four-part series on the respiratory system, looks at the lungs, pleura and respiratory defence mechanisms. The lungs. The lungs are cone-shaped organs that sit in the chest cavity, protected by the ribs.