
Keywords: 3V; third ventricle; 4V; fourth ventricle; 5HT; serotonin; CP; choroid plexus; CSF; cerebrospinal fluid; CTB; cholera toxin subunit beta; DR; dorsal raphe; DTM; dorsal tuberomammillary nucleus; HA; histamine; ICC; immunocytochemistry; lDR; lateral dorsal