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 T-shirts production of luxury goods in Africa. Stacey Dooley, one of the participants, has presented several shows for BBC Three since 2009 under the title "Stacey Dooley Investigates". Blood, Sweat and T-shirts Blood, Sweat and T-shirts is a British TV documentary series, broadcast in 2008 on BBC Three. The series followed six British fashion consumers aged between 20 and 24 as they travelled to India to live and work alongside Indian garment workers, making clothes destined for sale in British high-street stores. The series was nominated in the Best Factual Series category at the 2009 BAFTA Television Awards. The series was