The renal medulla is split up into a number of sections, known as the renal pyramids. Blood enters into the kidney via the renal artery, which then splits up to form the arcuate arterioles. The arcuate arterioles each in turn branch into interlobar arterioles, which finally reach the glomeruli.he renal medulla only receives about 10% of all the blood flowing through the kidneys. You could say that the function of the renal medulla, or the kidney in general, is maintaining homeostasis of a large number of solutes and water.
Former Republican President Ronald Reagan is widely recognized as one of America's best presidents for economic expansion. But his party's overall economic track record isn't nearly as sterling. Michael Evans/The White House/Getty Images.
Supply-side economics is better known to some as  Reaganomics , or the trickle-down policy espoused by 40th U.S. President Ronald Reagan.upply-side economics has a colorful history. Some economists view supply-side as a useful theory. Other economists so utterly disagree with the theory that they dismiss it as offering nothing particularly new or controversial as an updated view of classical economics.