胸膜是指覆盖在肺脏表面的浆膜。紧贴在肺脏上的一层浆膜叫脏层胸膜;贴在胸壁上的一层浆膜叫壁层胸膜。二者之间封闭形成一个腔隙,称为胸膜腔。在正常情况下,胸膜中含有极少量的浆液,以便在呼吸运动中起两层胸膜之间的润滑作用。 Pleura refers to the serosa covering the surface of the lungs. Close to the lungs on a layer of serosa called visceral pleura; attached to the chest wall of a layer of serosa called the parietal pleura. Closed between the two to form a cavity, called the pleural cavity. Under normal circumstances, the pleura contains a very small amount of slurry, in order to play during the respiratory motion between the two pleura lubrication.