Synaptic Transmission in Sympathetic Ganglia

摘要

Properties of the atropine-sensitive slow synaptic responses in mammalian sympathetic ganglia were further analysed as to their 1) postsynaptic origin, 2) transmitter substances, and 3) durations of synaptic delays for each. Intracellular studies on single ganglion cells of frog's sympathetic ganglia are also reported in relation to 1) atropine-sensitivity of true after-potentials and 2) pre- and postsynaptic blocking action of curariform substances. The actions of other nicotinic blocking agents (hexamethonium, mecamylamine) on frog ganglionic synaptic responses are also reported. Developments in the technique for intracellular recording in mammalian ganglia are described. (Author)