title: Circadian pacemakers in the nervous system.
mesh_terms: D000818:Animals; D001831:Body Temperature; D002940:Circadian Rhythm; D006801:Humans; D009424:Nervous System Physiological Phenomena; D010786:Photoreceptor Cells / Q000502:physiology; D010870:Pineal Gland / Q000502:physiology; D012890:Sleep; D013045:Species Specificity; D014851:Wakefulness