Distribution of muscarinic receptors in mammalian sympathetic ganglion: autoradiographic and electrophysiological studies

Transmission of signals through sympathetic ganglia – modulation, integration or simply distribution?

“…There is little evidence for such responses in paravertebral ganglia of mammals although high‐frequency stimulation of preganglionic nerve trunks can enhance postganglionic discharges lasting many minutes to hours (Blumberg & Jänig 1983). At least some of these prolonged responses are mediated by muscarinic receptors that are probably located extrasynaptically on some sympathetic neurones (Koval et al 1982). Ganglionic muscarinic receptors appear to be selectively involved in chemoceptor reflexes (Jänig et al 1983a).…”