Serous fluid major salivary glands produce mixed (serous and mucus) saliva. Another type of serous fluid is secreted by the serous membranes (serosa), two-layered membranes which line the body cavities. Serous membrane fluid collects on microvilli on the outer layer and acts as a lubricant and reduces friction from muscle movement. This can be seen in the lungs, with the pleural cavity. Blood serum is the component of blood that is neither a blood cell, nor a clotting factor. Blood serum and blood plasma are similar, but serum does not contain any clotting factors, such as fibrinogen, prothrombin, thromboplastin and many others.
Blood, Sweat and Tears (album) Blood, Sweat and Tears (album) Blood, Sweat and Tears is the fifteenth album by singer Johnny Cash, released in 1963 (see 1963 in music). It is a collection of songs about the American working man. This includes "The Legend of John Henry's Hammer" and "Busted", the latter of which would become a single. Both would also be performed by Cash during his famous 1968 concerts at Folsom Prison and be included in the 1999 extended reissue of the album, "At Folsom Prison". The album was included on the Bear Family Records box set "Come Along and Ride This Train". Additional