Cerebellar afferents from the nucleus of the solitary tract.

The cerebellar afferents from the nucleus of the solitary tract were studied in cat by means of retrograde axonal transport of horseradish peroxidase. Labelled cells occurred bilaterally in the nucleus of the solitary tract following injections in various folia of the cerebellar vermis and in the flocculus (the positive cases are shown in Fig. 1A). Injections in the anterior lobe vermis labelled cells in the caudal part of the nucleus, injections in the posterior vermis labelled cells in the rostral part (Fig. 2). The findings are discussed in relation to other efferent and afferent connections of the nucleus of the solitary tract.