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: Acetylcholine is a neurotransmitter in the nervous system (both peripheral and central systems). See link for additional info. Source(s): http://en.wikipedia.org/wiki/Acetylcholi...t's a neurotransmitter in humans in both the central nervous system and peripheral nervous system see http://en.wikipedia.org/wiki/Acetylcholi...