Nervous System. All mental and physical activities are controlled or mediated by the brain and the nervous system. Voluntary actions originate in the brain and the nerves carry the information to other parts of our body.The nervous system relies upon a correct chemical balance in the body.ervous System. All mental and physical activities are controlled or mediated by the brain and the nervous system. Voluntary actions originate in the brain and the nerves carry the information to other parts of our body.
From Wikipedia, the free encyclopedia. Letts is a city in Louisa County, Iowa, United States established in 1855. The population was 384 at the 2010 census. It is part of the Muscatine Micropolitan Statistical Area. The name is from local benefactor, Maddison Letts.
Yachats is the southernmost city in Lincoln County. It is bounded by the Central Oregon Coast Range on the east and the Pacific Ocean on the west. It is located on U.S. Route 101, 26 miles (42 km) north of Florence, 8 miles (13 km) south of Waldport, and 26 miles (42 km) south of Newport.