Projections of the nucleus praepositus hypoglossi to the cerebellum in the cat

Abstract

The axonal projections from the nucleus praepositus hypoglossi (PH) to the cerebellum have been studied in cat.Cerebellar projections were evidenced by means of the retrograde axonal transport of horseradish peroxidase.According to the results the PH nucleus projects to the entire vermis, especially to the posterior lobes, as to the flocculus and paraflocculus.No projections to other areas of the cerebellar cortex were found.PH projections go to the cerebellum through the inferior peduncle.