SALIVATION IN RESPONSE TO LOCALIZED STIMULATION OF THE MEDULLA

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Abstract
On electrical exploration of the medulla in cats, stimulation of various points yielded salivation. These points lay mostly in the reticular formation and in the region of the intramedullary course of the facial or glossopharyngeal nerves. Points which gave predominantly submaxillary salivation, with the exception of those associated with the facial efferents, lay mostly rostral and medial to the middle third of the facial nucleus. Points primarily concerned with parotid salivation were concentrated caudal to and above the submaxillary center, and medial to and above the cranial end of the nucleus ambiguus. Both ipsilateral and bilateral salivation were obtained from unilateral stimulation, with or without accompanying blood pressure rises.

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