Parietal Pleura
Visceral membrane of the lungs
Each lung lies within the pleural cavity within which the lung expands. The pleural cavity is lined by two transparent elastic membranes called the pleura/pleural membranes. The inner pleuron covers the lung the outer pleuron is in contact with the walls of the thorax and the diaphragm. A thin layer of lubricating fluid between the pleural membranes allows them to glide over each other when the lungs expand and contract during breathing. So your answer is the pleural fluid lies between the pleural membranes.
the lungs are protected with a db layer serous membrane. 1: is the superficial layer called the Parietal pleura that line the walls of the thoracic cavity. 2: The deeper layer is the visceral pleura, which cover the lungs themselves. In between the both membranes is a small space(cavity)filled with pleurisy to reduce friction.
1) The walls of the thorax are supported by the dorsal vertebrae, the ribs, and the sternum. 2) The plural of thorax is thoraxes or thoraces.
Thoracotomy
The pleurae, which are membranes with a thin layer of liquid between. The inner pleura covers the lungs and the outer pleura is attached to the chest wall itself.
All cells have cell walls. The big difference is that plant cells have an additional layer of cell wall covering them.
membrane or plasma membrane.
Everson Walls
coronary sinus
it has sticky layer in it
Walls are commonly framed with 2x4 lumber, known as studs. The covering is fastened to the wall to enclose it.