Term
| 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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