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 parietal pleura is a membrane that lines the cavity in the chest that contains the lungs. Another membrane, called the visceral pleura, closely covers the lung surfaces. The narrow gap between the parietal and the visceral pleura is known as the pleural cavity or space.Within this space, pleural fluid forms a thin layer on the pleural membranes, preventing friction between the surfaces.arietal pleura refers to a membrane that lines the chest cavity that contains the lungs. Traumatic injuries, such as a stab wound, may cause air in the pleural space, leading to an open pneumothorax. Pneumonia may cause the pleural space to become inflamed, which may lead to a condition known as pleurisy.