The Nervous System: A basic Summary of the nervous system and some little peices on how it is affected by disease and drugs.

NERVOUS SYSTEM The Nervous system receives sensory input from the internal and external environment. It then integrates the input in the sensory centers of the brain and responds to the various stimuli with a motor output, which can be converted by the organs to some form of energy ie. movement, release of hormones, changes in heart rate. The response is not always conscious, for instance if you were climbing a mountain and the air became …

…plaques. Because alpha-synuclein fragments are implicated in both Parkinson's and Alzheimer's diseases, there may be duplicate pathogenic mechanisms between the two; therefore research into one disease may aid understanding of the other. As of yet there is no cure, but there are a number of other animals that have alpha-synuclein fragments in their natural make-up that play different roles in their body. The rat for instance, needs alpha-synuclein fragments to use their sense of smell.