Autonomic outflow from the medulla is divided principally into sympathetic and parasympathetic (vagal) branches. Efferent fibers of these autonomic nerves travel to the heart and blood vessels where they modulate the activity of these target organs. The heart is innervated by vagal and sympathetic fibers.
Best Answer: The cold war didn't have a specific start or ending time but if i had to give one I'd say that it started right after WWII (1945) and ended in the early 90's, probably 1991, the fall of the Soviet Union. Source(s): xzorion54 Â· 9 years ago.
The Cold War was called âThe Cold Warâ, because it didnât actually lead up to a hot conflict, it just kind of led away from using weapons. At the end of World War II, Germany was divided into four sections of occupations that were controlled by Britain, France, the Soviet Union, and the United States.