Posts: 213. I have been using various search engines to find information on Cat emissions and the uk law surrounding them. I have failed to find any proof that you *actually* require a cat to be fitted to your vehicle during an MOT test. the only thing I'm sure of is that it must pass the actual emissions test itself.hen the Carbon Monoxide passes through the catalytic Converter it is oxidised meaning that Another oxygen atom will be added to it, causing The Carbon monoxide to have one part Carbon and Two atoms of oxygen, therefore turning the Carbon Monoxide into Carbon Dioxie.
The parietal pleura is attached to the wall of the thoracic cavity and innervated by the intercostal nerves and phrenic nerve. Parietal pleura lines the thoracic wall, covers the superior surface of the diaphragm and separates the pleural cavity from the mediastinum.he parietal pleura is attached to the wall of the thoracic cavity and innervated by the intercostal nerves and phrenic nerve. Parietal pleura lines the thoracic wall, covers the superior surface of the diaphragm and separates the pleural cavity from the mediastinum.
The outer pleural layer is known as the parietal pleura and lines the inside of the chest cavity around the lung. The inner pleural layer is attached to the lungs and is known as the visceral pleura.The pleural cavity is the space between the two pleural layers and it contains approximately 10 to 20ml of thin serous fluid known as the pleural fluid.owever, the pain may radiate or refer to surrounding areas. 1  If the parietal pleura lying in the area of the upper six ribs is inflamed, it causes localized pain (upper chest pain). 2  When the pleura behind the lower ribs and outer parts of the diaphragm are inflamed, the pain may be referred to the upper abdomen.