Kidneys produce hormones. Normal kidneys also make important chemical messengers called hormones. These hormones circulate in the bloodstream and regulate some body functions such as blood pressure, the making of red blood cells, and the uptake of calcium from the intestine.
A Game Called Salisbury: The Spinning of a Southern Tragedy and the Myths of Race Paperback â December 14, 2007. Find all the books, read about the author, and more.
Updated July 13, 2017. In the textile industry, a spinning mule is a device invented in the 18th century that spun textile fibers into yarn by an intermittent process: in the draw stroke, the roving is pulled through and twisted; on the return, it is wrapped onto the spindle.