This figure shows the three main locations of acetylcholine receptors: CNS receptors (muscarinic and nicotinic): cholinergic neurotransmission at the CNS level is thought to regulate sleep, wakefulness, and memory. Two clinical situations depict the role of acetylcholine in CNS: - Acetylcholinesterase inhibitors are used in the treament of Alzheimerâs disease and other dementias.
The Cause Of Bacteria Contamination in Well Water Poor well construction If you have a bedrock well, bacteria contamination could be caused by a buried well head or an inadequate well cap.
Contamination from human activity. 1  Bacteria and nitrates: These contaminants are found in human and animal wastes. Septic tanks or large numbers of farm animals can also cause bacterial and nitrate pollution. Both septic systems and animal manures must be carefully managed to prevent private well contamination.