To learn whether horseradish peroxidase (HRP) injections in gustatory papillae on the tongue can be used to study central topographical projections of taste buds and papillae, injections were made into the circumvallate papilla in rats. Labeled central projections after papilla injections were compared to projections after applying HRP to the cut glossopharyngeal nerve. Papilla injections resul...

Since the first report by Cechetto and Saper (1987) showing the viscerotopic sensory representation in the insular cortex, various studies on the posterior insular cortex have been performed. We previously studied the response properties of neurons in the rat insular cortex to gustatory, visceral and nociceptive stimulation, and to electrical stimulation of the various sensory nerves (chorda ty...

Combining unilateral denervation of anterior tongue taste buds with a low-sodium diet in rats results in a rapid, dramatic, and selective attenuation of neurophysiological sodium taste responses from the intact side of the tongue. The transduction pathway responsible for the attenuated response is through the epithelial sodium channel (Hill and Phillips, 1994). Current experiments extend these ...

Although rare, syncope may result from metastasis to the retropharyngeal or parapharyngeal space and involve or invade the glossopharyngeal nerve or internal carotid artery. We report the CT and MR imaging findings in four patients with syncope that preceded the diagnosis of recurrent squamous cell carcinoma in the pericarotid region. These findings suggest that recurrent carcinoma should be ru...

the carotid is a small mass of chemoreceptor's and sustentacular cells that detects changes in the composition of the arterial blood. the aim of the present study was to identify the size, color, location, blood and nerve supply of the carotid body in makouei sheep. fourteen heads of sheep from both sexes were collected from urmia public slaughter-house. the exact situation and nerve supply of ...

Sato, Katsushige and Yoko Momose-Sato. Optical mapping reveals developmental dynamics of Mg -/APV-sensitive components of glossopharyngeal glutamatergic EPSPs in the embryonic chick NTS. J Neurophysiol 92: 2538–2547, 2004. First published June 2, 2004; 10.1152/jn.00372.2004. To examine whether there are any differences in functional organization between the glossopharyngeal nerve (N. IX)– and v...

Glossopharyngeal neuralgia (GPN) is a rare disorder of the ninth cranial nerve characterized by severe paroxysmal pain affecting the ear, tongue, and throat. GPN can be associated with life-threatening issues such as cardiac arrhythmias, syncope, or malnutrition and weight loss from odynophagia. Though traditional treatment for GPN involves medical management at first and surgery for refractory...

Medical history, disease onset, clinical symptoms, and results of neuroimaging 14 glossopharyngeal schwannoma patients, who were exa­mined treated in the Subtentorial Neurooncology Department State Institution, Romodanov Institute Neurosurgery NAMS Ukraine (8 patients) No. 2 Municipal Enterprise, Mechnikov Dnipropetrovsk Regional Clinical Hospital Council (6 2018 to 2021 have been analyzed deta...