title: Pineal canaliculi: demonstration, twenty-four-hour rhythmicity and experimental modification.
mesh_terms: D000818:Animals; D002940:Circadian Rhythm; D005260:Female; D006493:Heparin / Q000494:pharmacology; D007365:Intercellular Junctions; D008297:Male; D008550:Melatonin / Q000494:pharmacology; D009638:Norepinephrine / Q000494:pharmacology; D010870:Pineal Gland / Q000033:anatomy & histology* / Q000098:blood supply / Q000166:cytology / Q000187:drug effects / Q000294:innervation / Q000502:physiology; D051381:Rats; D012701:Serotonin / Q000494:pharmacology
chemical_list: D012701:Serotonin; D006493:Heparin; D008550:Melatonin; D009638:Norepinephrine