Which of the following may be said of the renal medulla? A. it is the more superfi cial part of the kidney. B. it contains all of the glomeruli. C. it produces adrenaline and noradrenaline. D. it contains the pyramids and columns.
Option D. It contains pyramid and columns. The medulla is deep to the cortex. In this area are many blood vessel (withinside the columns) and the accumulating ducts (withinside the pyramids)