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Which of the following function are regu...

Which of the following function are regulayted by melatonin/pineal gland 
(a) Defense capability (b) Pigmentation
(c ) Menstrualcycle (d) Metabolism
(e ) Diurnal(24-hour) cycle rhythm (f) Body temperature
(g) Sleep-wake cycle

A

a, d, c, fand g

B

b,C , d, e, fand g

C

a, c, d and e

D

a, b c,d, e, fand g

Text Solution

AI Generated Solution

The correct Answer is:
To determine which functions are regulated by melatonin or the pineal gland, we can analyze each option provided in the question. ### Step-by-Step Solution: 1. **Understanding Melatonin and Pineal Gland**: - The pineal gland is a small endocrine gland located in the brain. It produces the hormone melatonin, which is primarily responsible for regulating various biological rhythms and functions. 2. **Analyzing Each Option**: - **(a) Defense capability**: Melatonin has been shown to have some role in the immune response, thus it can be linked to defense capability. - **(b) Pigmentation**: Melatonin influences skin pigmentation by regulating the activity of melanocytes, the cells that produce melanin. - **(c) Menstrual cycle**: Melatonin affects the menstrual cycle by influencing the levels of reproductive hormones such as progesterone and estrogen. - **(d) Metabolism**: While melatonin does have some influence on metabolism, it is not its primary function. - **(e) Diurnal (24-hour) cycle rhythm**: Melatonin is crucial for regulating circadian rhythms, including the sleep-wake cycle. - **(f) Body temperature**: Melatonin can influence body temperature regulation, particularly during sleep. - **(g) Sleep-wake cycle**: Melatonin is well-known for its role in promoting sleep and regulating the sleep-wake cycle. 3. **Conclusion**: - Based on the analysis, melatonin regulates the following functions: - (a) Defense capability - (b) Pigmentation - (c) Menstrual cycle - (e) Diurnal cycle rhythm - (f) Body temperature - (g) Sleep-wake cycle - However, (d) Metabolism is not primarily regulated by melatonin. 4. **Final Answer**: - The functions regulated by melatonin/pineal gland are (a), (b), (c), (e), (f), and (g).
To determine which functions are regulated by melatonin or the pineal gland, we can analyze each option provided in the question. ### Step-by-Step Solution: 1. **Understanding Melatonin and Pineal Gland**: - The pineal gland is a small endocrine gland located in the brain. It produces the hormone melatonin, which is primarily responsible for regulating various biological rhythms and functions. 2. **Analyzing Each Option**: ...
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