Windows 10: What is the $WINDOWS.~BT folder used for? This folder is used by the Windows 10 Updater, it contains update logs and files downloaded by the Windows update process. How to delete the $WINDOWS.~BT folder? The folder can be deleted e.g. when an upgrade from windows 7 / 8 to Windows 10 failed and you want to free up space on the hard disk.
Two Types of Receptors. There are two types of acetylcholine receptors (AChR) that bind acetylcholine and transmit its signal: muscarinic AChRs and nicotinic AChRs, which are named after the agonists muscarine and nicotine, respectively.
Structure of acetylcholine (ACh). 11.2 Acetylcholine in the Autonomic Nervous System. In the autonomic nervous system, acetylcholine (ACh) is the neurotransmitter in the preganglionic sympathetic and parasympathetic neurons. These are shown in Figure 11.2 as the red ACh in the ganglion.nhibitors of acetylcholinesterase are the most effective means to elevate acetylcholine either at cholinergic neurons or at the neuromuscular junction. These drugs are used to treat Alzheimer's disease, myasthenia gravis and in many other situations where the elevation of cholinergic neurotransmission is desired.