Receptors, Cholinergic

**Definition:** Cell surface proteins that bind acetylcholine with high affinity and trigger intracellular changes influencing the behavior of cells. Cholinergic receptors are divided into two major classes, muscarinic and nicotinic, based originally on their affinity for nicotine and muscarine. Each group is further subdivided based on pharmacology, location, mode of action, and/or molecular biology.

**Tree numbers:** - D12.776.543.750.720.360

**Synonyms:** - Receptors, ACh - ACh Receptor - Cholinergic Receptor - Cholinoceptor - Acetylcholine Receptor - Acetylcholine Receptors - Receptors, Acetylcholine - Cholinoceptive Sites - Cholinoceptors - ACh Receptors - Cholinergic Receptors