nicotinic receptors

Nicotinic receptors are specialized proteins found in the body that respond to the neurotransmitter acetylcholine, which is involved in transmitting signals between nerve cells. They play a key role in muscle movement, brain function, and the autonomic nervous system, influencing processes such as heart rate and digestion. When acetylcholine binds to these receptors, it triggers various responses, including muscle contraction. Nicotinic receptors are also affected by nicotine, the addictive substance in tobacco, which can enhance or disrupt normal communication in the nervous system, leading to its stimulating effects.