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.
Secondary layer.
Yes - plant cell walls can have up to three layers. The middle lamella is the outermost layer and contains high levels of pectin. The primary cell wall is a thin, flexible layer found in the middle. The secondary cell wall is a thicker layer on the inside.
Cell walls of bacteria are made of peptidoglycan, a unique molecule composed of sugars and amino acids. In addition, some bacteria have an extra layer of protection outside the peptidoglycan layer, such as a capsule or slime layer, which help protect the bacteria from damage and harsh environments.
Prokaryotic cell walls are made out of peptidoglycan if its for bacteria. In the algae most posses a cell wall made out of surface layer protein, which forms a s-layer.
Parietal Pleura
The pleural fluid reduces the friction between the lungs and the walls of the thorax by lubricating the pleural surfaces. This fluid allows the lungs to move smoothly during respiration without causing friction or resistance.
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 most superficial wall of the pleural cavity is lined with a layer called the parietal pleura. This layer covers the walls of the thoracic cavity.
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 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.
it has sticky layer in it
Capillary walls consists of a single layer of flat endothelium
They walls are a single layer of squamous epithelial cells.
it hurts them
Secondary layer.