https://doi.org/10.1351/goldbook.11101
Each of a pair of serous membranes lining the thorax and enveloping the lungs in humans and other mammals.
Note: The pleural membrane covering the lungs and extending into the fissures of the lobes is called the visceral pleura and lacks a nerve supply. That lining the chest cavity, mediastinum, and diaphragm is called the parietal pleura; it is innervated and sensitive to pain.