Electrical potential on the papilla parotidea and Na+ and Cl- concentrations in parotid saliva and salivary flow rates in human.

When the glossopharyngeal (GP) nerve of the frog was stimulated electrically, electropositive slow potentials were recorded from the tongue surface and depolarizing slow potentials from taste cells in the fungiform papillae. The amplitude of the slow potentials was stimulus strength- and the frequency-dependent. Generation of the slow potentials was not related to antidromic activity of myelinated afferent fibers in the GP nerve, but to orthodromic activity of autonomic post-ganglionic C fibers in the GP nerve. Intravenous injection of atropine abolished the positive and depolarizing slow potentials evoked by GP nerve stimulation, suggesting that the slow potentials were induced by the activity of parasympathetic post-ganglionic fibers. The amplitude and polarity of the slow potentials depended on the concentration of adapting NaCl solutions applied to the tongue surface. These results suggest that the slow potentials recorded from the tongue surface and taste cells are due to the liquid junction potential generated between saliva secreted from the lingual glands by GP nerve stimulation and the adapting solution on the tongue surface.

show abstract

The Origin of Slow Potentials on the Tongue Surface Induced by Frog Glossopharyngeal Efferent Fiber Stimulation

Sato

Toda²,

Miyamoto³

et al. 2000

Chemical Senses

View full text Add to dashboard Cite

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

Electrical potential on the papilla parotidea and Na+ and Cl- concentrations in parotid saliva and salivary flow rates in human.

Cited by 1 publication

References 3 publications

The Origin of Slow Potentials on the Tongue Surface Induced by Frog Glossopharyngeal Efferent Fiber Stimulation

The Origin of Slow Potentials on the Tongue Surface Induced by Frog Glossopharyngeal Efferent Fiber Stimulation

Contact Info

Product

Resources

About