Projections of the Internal Branch of the Superior Laryngeal Nerve of the Cat (original) (raw)

LUCIER, G E., R. EGIZII AND J. 0. DOSTROVSKY Projections ofthe rnfernal branch ofthe superior laryngeal nerve ofrhr car. BRAIN RES BULL M(5) [713][714][715][716][717][718][719][720][721] 1986.-The internal branch of the supenor laryngeal nerve (tSLN) conveys sensory afferent mformatton from receptors located m the laryngeal mucosa. The objecttves of thts study were. to determine the specific anatomical locatton of iSLN cell bodies within the nodose ganglion, to ascertam whether the jugular ganglion mtght also contain ISLN atferent bodies; to determine whether the iSLN contains sympathetic efferents onginatmg m the cervical sympathettc ganglion; to determme whether the cell bodies of these efferents, if present, are localized wtthm a specdic region of thts ganglion and to trace the transganghonic projectton of ISLN afferents mto the bram stem. Horseradish peroxidase was applied to the iSLN m ten adult cats. Following a survival period of 72 hours, the animals were sacnficed and the tissue was processed according to the tetramethylbenztdme method. Reaction product was locahzed in the rostra1 end of the nodose ganglion extending into the exiting vagus nerve, m the caudal end of theJugular ganglion and m the postenor portion of the cervrcal sympathettc ganglion. Tr~sganglionic projections to the nucteus tractus sobtanus were localized prtmardy rn the dorsolateral subnucleus with substantial amounts of reaction product also in the intermediate and Interstitial subnuclei. Except for a small bilateral projection observed m the commissural subnucleus, no other proJecttons were seen to any other bram stem structures Internal superior laryngeal nerve Nucleus of the solitary tract

Sign up for access to the world's latest research.

checkGet notified about relevant papers

checkSave papers to use in your research

checkJoin the discussion with peers

checkTrack your impact