The interposed nucleus is a core region in the cerebellum, which consists of two parts.
Anatomy
The posterior interposed nucleus corresponds to the nucleus globosus, the anterior interposed nucleus to the nucleus emboliformis. The interposed nucleus is located in the roof of the fourth ventricle.
Afferents
The interposed nucleus receives afferent fibers from the anterior lobe of the cerebellum.
Efferents
The efferent fibers of the interposed nucleus run via the superior cerebellar peduncle to the nucleus ruber.