Pulmonary alveolus thin fluid coating within all alveoli. The fluid coating is produced by the body in order to facilitate the transfer of gases between blood and alveolar air. The surfactant is produced by the type II cells which are the most numerous cells in the alveoli, yet do not cover as much surface area as the squamous alveolar cells (a squamous epithelium). Type II cells also repair the endothelium of the alveolus when it becomes damaged. Insufficient surfactant in the alveoli can contribute to atelectasis (collapse of part or all of the lung). Without pulmonary surfactant, atelectasis is a certainty; however,
The Blue Humans The Blue Humans The Blue Humans is the name used by experimental guitarist Rudolph Grey for the improvised performances he leads with a variety of other musicians. Grey first came to notice in the late-1970s New York City post punk and art scene which also produced Sonic Youth and Swans, and played in the influential no wave band Mars. Since then, he has released solo material as well as several Blue Humans records, the latter mostly live recordings. Blue Humans members and collaborators have included Tom Surgal, Arthur Doyle, Beaver Harris, Alan Licht, Charles Gayle, and Thurston Moore. Blue Humans