Nicotinic receptor

Nicotinic receptors are specialized proteins located on nerve cells and muscle cells that respond to the neurotransmitter acetylcholine. When acetylcholine binds to these receptors, it triggers a series of events that help transmit signals across nerves or cause muscles to contract. They are called "nicotinic" because nicotine, from tobacco, can also activate them. These receptors play a crucial role in nervous system communication, influencing muscle movement, attention, learning, and memory. Proper functioning of nicotinic receptors is essential for normal nerve and muscle activity, and they are involved in various physiological processes and certain medical conditions.