'''Kelenjar Pineal''' (uga diarani '''pineal body''', '''epiphysis cerebri''', '''epiphysis''' utawa mata katelu) iku sawijiningsiji kelenjar [[Sistem endokrin|endokrin]] cilik ing utek vertebrata. Kelenjar iki mrodhuksi [[melatonin]], sawijiningsiji [[hormon]] sing mengaruhi modulasi pola melèk /turu lan fungsi ''photoperiodic'' (usuman).<ref>{{cite journal | author = Macchi M, Bruce J | title = Human pineal physiology and functional significance of melatonin | journal = Front Neuroendocrinol | volume = 25 | issue = 3-4 | pages = 177–95 | year = 2004 | pmid = 15589268 | doi = 10.1016/j.yfrne.2004.08.001}}</ref><ref name="Arendt2005">{{cite journal |author=Arendt J, Skene DJ |title=Melatonin as a chronobiotic |journal=Sleep Med Rev |volume=9 |issue=1 |pages=25–39 |year=2005 |pmid=15649736 | quote = Exogenous melatonin has acute sleepiness-inducing and temperature-lowering effects during 'biological daytime', and when suitably timed (it is most effective around dusk and dawn) it will shift the phase of the human circadian clock (sleep, endogenous melatonin, core body temperature, cortisol) to earlier (advance phase shift) or later (delay phase shift) times. |doi=10.1016/j.smrv.2004.05.002 }}</ref> Wanguné kaya corong kembang pinus, lan dumunung ing sacedhaké punjer itek, antara kaloro ''[[cerebral hemisphere|hemispheres]]'', manggon ing lekukan papan kaloro [[thalamus]] ketemu.
