Excitatory effects on renal sympathetic nerve activity induced by stimulation at two distinctive sites in the fastigial nucleus of rabbits.
Tetanic stimulation of the fastigial nucleus in anesthetized rabbits induced a rise in blood pressure and concomitantly increased activity of the ipsilateral renal sympathetic nerve. Two distinctive, effective sites were thus found, one in the rostro-ventro-medial portion and the other in the caudo-medial portion of the fastigial nucleus. The results suggest the existence of two separate groups of fastigial neurons playing different roles in cardiovascular function.
D000818:Animals; D001794:Blood Pressure; D001931:Brain Mapping; D002319:Cardiovascular System / Q000294:innervation*; D002529:Cerebellar Nuclei / Q000502:physiology*; D004525:Efferent Pathways / Q000502:physiology; D007668:Kidney / Q000294:innervation*; D011817:Rabbits; D013564:Sympathetic Nervous System / Q000502:physiology*