Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into...
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Transcript of Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into...
![Page 1: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/1.jpg)
Pineal GlandRipple
Ireland
![Page 2: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/2.jpg)
Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal aspects of brain’s diencephalon region Part of both nervous system and endocrine system
![Page 3: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/3.jpg)
What hormones does it produce? Melatonin
derived from tryptophan, regulates circadian rhythm (sleep cycle) and body temperature
![Page 4: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/4.jpg)
What effect does the hormone have? Regulation of sleep patterns and seasonal functions (i.e.
hibernation) Influences sexual development, hibernation, and seasonal
breeding Helps protect body from cell damage caused by free radicals Jet lag
![Page 5: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/5.jpg)
Why is this hormone important to homeostasis? Homeostatic sleep schedule thermoregulation
![Page 6: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/6.jpg)
Feedback Mechanisms and Antagonistic Hormones Source of circadian rhythms (sleep patterns) lies in
suprachiasmatic nuclei (SCNs) Day: SCN decreases melatonin production Night: SCN increases melatonin production
![Page 7: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/7.jpg)
What releases/inhibits melatonin production? Inhibited when retina detects light Stimulated when in darkness
![Page 8: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/8.jpg)
What happens if the gland does not function properly?
Too much Drowsiness/insomnia Reduced core body temperature
Not enough/not at all Seasonal Affective Disorder (SAD) – depression in winter More inflammation Weakened immune system Increased risk of cancer
![Page 9: Pineal Gland Ripple Ireland. Where is it located? Between two hemispheres of brain Tucked into groove where two rounded thalamic bodies join Dorsal.](https://reader035.fdocuments.us/reader035/viewer/2022062309/5697bfea1a28abf838cb75c2/html5/thumbnails/9.jpg)
What can be done? Supplements are available Doses of melatonin can be used to treat depression,
insomnia, and jet lag.
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Sources http://en.wikipedia.org/wiki/Pineal_gland http://www.crystalinks.com/thirdeyepineal.html