Visceral Pleura: Covers the lungs and Parietal Pleura covers the internal surface of the thoracic cavity. There is a potential space between the viscera and parietal pleura, known as the pleural cavity. But is actually all connected, These two parts are continuous with each other at the hilum of each lung.
The right way to uncoil. There is only one correct way to uncoil wire rope. One person must hold the end of the rope while a second person rolls the coil along the floor, backing away. The rope is allowed to uncoil naturally with the lay, without spiraling or twisting.
Edit: For those of you about to try this on old cables or garden hoses, make sure you drag it out straight and get all the kinks and twists out. It'll make it easier to tame. Also, play around with it and notice how twisting the cable left or right changes the way it wants to coil.