Corffyn pineol

Corffyn pineol
Enghraifft o'r canlynol	rhanbarth yr ymennydd, dosbarth o endidau anatomegol
Math	organ component gland, endid anatomegol arbennig
Rhan o	epithalamws
	Ffeiliau perthnasol ar Gomin Wicimedia

Lleolir y corffyn pineol neu weithiau y trydydd llygaid (Sa: pineal body; Lladin: epiphysis cerebri neu epiphysis) yn yr ymennydd. Chwaren pineol ydyw sy'n cynhyrchu melatonin, sef hormon allweddol sy'n effeithio cwsg bodau dynol.^[1]^[2]

Mae'n edrych yn debyg iawn i gôn y pinwydd (neu 'foch coed'), a dyna darddiad ei enw Lladin.

Cyfeiriadau

↑ Macchi M, Bruce J (2004). Human pineal physiology and functional significance of melatonin, Cyfrol 25, Rhifyn 3-4. DOI:10.1016/j.yfrne.2004.08.001
↑ Arendt J, Skene DJ (2005). Melatonin as a chronobiotic, Cyfrol 9. DOI:10.1016/j.smrv.2004.05.002 “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.”

[1] Macchi M, Bruce J (2004). Human pineal physiology and functional significance of melatonin, Cyfrol 25, Rhifyn 3-4. DOI:10.1016/j.yfrne.2004.08.001

[2] Arendt J, Skene DJ (2005). Melatonin as a chronobiotic, Cyfrol 9. DOI:10.1016/j.smrv.2004.05.002 “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.”

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