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Where is melatonin produced? |
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Definition
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Term
Explain the synthesis of melatonin. |
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Definition
1. Photo info from retina 2. suprachiasmatic nucleus 3. hypothalamus 4. SNS via the superior cervial ganglion 5. pineal gland |
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Term
What is the affect of dark on melatonin? |
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Definition
Stimulator. 1.NE released 2. increases alpha1 and beta1 receptors in pineal gland 3. increases cAMP and Ca 4. convert Serotonin --> Melatonin |
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Term
How does light inhibit melatonin secretion? |
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Definition
retinal cells cannot release NE |
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Term
What controls the circadian rhythm? |
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Definition
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Term
True or False Melatonin can have positive effects on symptoms of jet lag. |
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Definition
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Term
What melatonin receptor regulates retinal function, circadian rhythm and reproduction |
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Definition
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Term
What are actions of melatonin that are not receptor mediated? |
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Definition
1. Free radical scavenger 2. at pharmalogical doses 3. immune system agumentation |
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Term
How is sleep affected by melatonin? |
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Definition
speed of falling asleep duration and quality of sleep hypnotic effects |
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Term
How are melatonin and mood asscoiated? |
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Definition
Depression and SAD may be casued by low or delayed levels of melatonin secretion. |
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Term
True or False Melatonin can stimulate progesterone synthesis. |
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Definition
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Term
True or False. Melatonin secretion decreases with aging. |
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Definition
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Term
True or False. Melatonin inhibits tumorigenesis caused by |
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Definition
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