Medullary projections of rabbit carotid sinus nerve.
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.
Blessing
W W
WW
Department of Medicine, Centre for Neuroscience, Flinders University, Bedford Park, South Australia 5042, Australia. w.w.blessing@flinders.edu.au
Yu
Y
Y
Nalivaiko
E
E
D000818:Animals; D002346:Carotid Sinus / Q000502:physiology*; D008297:Male; D008526:Medulla Oblongata / Q000502:physiology*; D009412:Nerve Fibers / Q000502:physiology; D009434:Neural Pathways / Q000502:physiology; D011817:Rabbits; D014276:Trigeminal Nerve / Q000502:physiology*