AHL is relatively rare (less than 100 cases have been reported in the medical literature as of 2006), it is seen in about 2% of ADEM cases, and is characterized by necrotizing vasculitis of venules and hemorrhage, and edema.
Acetylcholine has functions both in the peripheral nervous system (PNS) and in the central nervous system (CNS) as a neuromodulator. In the peripheral nervous system, acetylcholine activates muscles, and is a major neurotransmitter in the autonomic nervous system.
Best Answer: Many nerves in the human body secrete acetylcholine at their nerve endings. The acetylcholine diffuses accross a gap called a synapse and stimulates the next nerve or a muscle. This action of acetylcholine has to be brief in order for the brain to be able to change it orders to the rest of the body. Therefore acetylcholinesterase causes water to be added to the acetylcholine molecule to break it down into choline and acetic acid.