Nicotinic acetylcholine receptor

The nicotinic acetylcholine receptor is a type of protein found on nerve cells. It responds to the neurotransmitter acetylcholine, which is released when nerves communicate. When acetylcholine binds to this receptor, it opens a channel allowing ions to flow into the cell, leading to nerve signal transmission. This process is essential for muscle movement, brain function, and communication between nerves. The receptor's name comes from its ability to also respond to nicotine, the addictive substance in tobacco. Overall, it plays a vital role in nervous system signaling and muscle activation.