First, the autonomic nervous system (ANS) is a part of the inner structure of the brain and is a part of the nervous system. ... Autonomic nervous system disorders can occur as a result of another disease such as alcoholism, diabetes and even Parkinson's; in other cases it can occur on its own. It is divided into two systems; parasympathetic system and the sympathetic system. The sympathetic division of the autonomic nervous system regulates the flight-or-fight responses (refers to a physiological reaction that occurs in the presence of something that is terrifying, either mentall...

• Word Count: 2870
• Approx Pages: 11
• Has Bibliography
• Grade Level: Undergraduate

The poliovirus rarely attacks the central nervous system; however, if the virus does invade the CNS, it will replicate in the spinal cord and cause paralysis or death. ... The virus usually lasts in your system from anywhere between 3 to 35 days. ... About 4-8% of the polio infections, have a minor illness, called abortive poliomyelitis, that does not invade the central nervous system, but causes a sore throat, fever, nausea, and vomiting. ... The poliovirus rarely attacks the central nervous system; however, if the virus does invade the CNS, it will replicate in the spinal cord and cause p...

• Word Count: 4425
• Approx Pages: 18
• Grade Level: Undergraduate