Tags: Anatomical Structure.
Each lung is invested by an exceedingly delicate serous membrane the pleura which is arranged in the form of a closed invaginated sac. A portion of the serous membrane covers the surface of the lung and dips into the fissures between its lobes; it is called the pulmonary pleura (or visceral pleura). The visceral pleura is derived from mesoderm.The visceral pleura is attached directly to the lungs as opposed to the parietal pleura which is attached to the opposing thoracic cavity.
