The parietal pleura lies against the rib cage, and the visceral pleura lies on the surface of the lungs.
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The parietal pleura receives its blood supply from the intercostal arteries, which is the same as the overlying body wall.
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More than 50% of people affected with asbestosis develop plaques in the parietal pleura, the space between the chest wall and lungs.
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Rather, the parietal and visceral pleura are both composed of dense connective tissue and joined to each other via loose connective tissue.
From the en.wikipedia.org
The pleural and pericardial cavities are exaggerated since normally there is no space between parietal and visceral pleura and between pericardium and heart.