The term Nucleus centralis intermedialis refers to one of five midline nuclei of the thalamus as defined in Olszewski-1952. The other nuclei in the group are the Nucleus centralis densocellularis, the Nucleus centralis inferior thalami, the Nucleus centralis superior thalami, and the Nucleus centralis latocellularis. Together they constitute the central medial nucleus and the rhomboidal nucleus ( Jones-1990 )