PS263 Chapter Notes - Chapter 2: Electrical Synapse, Neuropeptide, Chromosome
Document Summary
Great majority of synapses rely on chemical processes, which are faster and more versatile than sherrington or anyone else of his era would have guessed. Set of nerves called the sympathetic nervous system accelerates the heartbeat, relaxes the stomach muscles, dilates the pupils of the eyes and regulates other organs. People ignored elliot"s suggestio(cid:374) a(cid:374)d (cid:272)o(cid:374)ti(cid:374)ued to thi(cid:374)k that s(cid:455)(cid:374)apses tra(cid:374)s(cid:373)itted electrical impulses. Most researchers over the next 3 decades continued to believe that most synapses were electrical and chemical synapses were the exception. The sequence of chemical events at a synapse. Understanding the chemical events at a synapse is fundamental to understanding the nervous system. Every year, researchers discover more and more details about synapses, their structure, and how those structures relate to function. Major events: the neuron synthesizes chemicals that serve as neurotransmitters. Synthesizes the smaller neurotransmitters in the axon terminals and synthesizes neuropeptides in the cell body: action potentials travel down the axon.
