Medullary projections of rabbit carotid sinus nerve

W. W. Blessing, Y. H. Yu, E. Nalivaiko

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    28 Citations (Scopus)


    In New Zealand white rabbits, cholera-toxin HRP was injected into the carotid sinus nerve just proximal to the carotid sinus. After survival periods of 3-5 days the rabbits were anesthetized and the brain fixed with aldehyde solution. Transverse sections were cut on a sledge microtome and the sections reacted with the tetramethylbenzidine procedure. HRP-positive fibers entered the ipsilateral dorsolateral medulla at the level of the acoustic tubercle, joining the tractus Solitarius. Positive fibres were found principally ipsilaterally in four regions of the medulla: in the caudal two thirds of the nucleus tractus solitarius, in its dorsolateral regions and, more caudally, in its commissural subdivision; in the dorsolateral aspect of the spinal nucleus of the trigeminal nerve; in the region ventral and ventrolateral to the tractus solitarius (extending beyond the nucleus tractus solitarius); and in the ventrolateral medulla oblongata.

    Original languageEnglish
    Pages (from-to)405-410
    Number of pages6
    JournalBrain Research
    Issue number2
    Publication statusPublished - 23 Jan 1999


    • Arousal
    • Baroreceptor
    • Chemoreceptor
    • Glossopharyngeal nerve
    • Nucleus tractus solitarius
    • Respiration
    • Spinal nucleus of the trigeminal nerve


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