A key process in surfactant secretion is exocytosis of LB, and there have been several ultrastructural observations of lamellar material passing from AT II cells into alveoli (reviewed in ref.
In one general practice sample, costochondritis, also known as costosternal syndrome and anterior chest wall syndrome, was the most common specific cause of anterior musculoskeletal chest pain, with a prevalence of 13%.
Less common causes of chest pain. Some of the less common causes of chest pain include the following. Pleurisy. Pleurisy is due to inflammation of the pleura, a thin membrane with two layers-one which lines the inside of the muscle and ribs of the chest wall, the other which surrounds the lungs.ressure over the affected area also causes sharp pain. The pain is usually confined to a small area but it can spread (radiate) to a wider area. The most common sites of pain are close to the sternum at the level of the 4th, 5th and 6th ribs. See separate leaflet called Costochondritis for more details.