For example, when a nerve is pinched or compressed, it can trigger the nerve to falsely signal pain. The compression also can limit the nerveâs ability to control the muscles it serves. One of the most common places for a pinched nerve to occur is within the spine.
An interesting fact is that five of the ten largest cities in the Southern Hemisphere are in South America, two in Australia, two in Africa, and the most surprising â only one in Asia, which otherwise is the most heavily populated continent. 1. Sao Paulo / Brazil. Sao Paulo is now the largest city south of the equator.
South America is situated entirely in the Western Hemisphere and mostly in the Southern Hemisphere with a small portion in the Northern Hemisphere. The continent is surrounded by North America in the northwest, Pacific Ocean on the west and on the north and east by the Atlantic Ocean. South America ranks fourth in area (after Asia, Africa, and North America) and fifth in population (after Asia, Africa, Europe, and North America). Brazil, Colombia, Ecuador, Peru, Argentina, Chile, olivia, Uraguay, Paraguay, among others, as well as off shore islands, are countries in South America.