Abstract
In rabbits the salivary outflow from the submaxillary duct was estimated without narcosis. The animal was fastened prone on an experiment table. The flow was determined first without any extra stimulus, and then on letting inhale ether.
Either the chorda tympani or the upper cervical ganglion or the both were interfered with, acutely or one to some weeks previously.
(1) Paralytic secretion. When the nerves, singly or combined, were interfered with acutely, the salivary flow from the gland denervated did not differ from that with the intact innervation.
But, when it was tested one to seven weeks after the parasympathetic denervation, the salivary flow was unmijtakably abundant. The sympathetic denervation did induce no paralytic secretion.
Namely the paralytic secretion of the saliva was proved here in rabbits, in which the acute cutting of the chorda tympani and the upper cervical ganglion together does not effect the salivary outflow from the submaxillary duct, in contrast to dogs.
(2) On etherization.
Ether narcosis does not act to increase salivation from submaxillary gland with the normal innervation in correspondence to the experience on human subjects.
But it acts to increase salivation when the sympathetic innervation is ruled out even just before the narcosis, and also acts so when the parasympathetic or sympathetic innervation or the both are interfered with one to some weeks previously.
