English-Ireland (top end) Renown is listed as a verb in Chambers Dictionary. I looked for etymology - the similarity with known is tantalising.... The M.E. verb renown has been assimilated to the noun via renowned famous, celebrated (c.1375). Source.
In Depth: Nervous. The nervous system has two major parts: the central nervous system (CNS) and the peripheral nervous system (PNS). The central system is the primary command center for the body, and is comprised of the brain and spinal cord. The peripheral nervous system consists of a network of nerves that connects the rest of the body to the CNS.
At the most basic level, the function of the nervous system is to send signals from one cell to others, or from one part of the body to others. There are multiple ways that a cell can send signals to other cells. One is by releasing chemicals called hormones into the internal circulation, so that they can diffuse to distant sites.