The nicotinic acetylcholine receptors (nAChRs ... five identical or homologous subunits symmetrically arranged around a central ionic channel. The acetylcholine (ACh)-binding sites on the nAChR ...

Information from receptors passes along neurones, as electrical impulses to co-ordinators such as the central nervous system or CNS. The CNS is the brain and spinal cord. Muscles contracting or ...