PATHOLOGY MCQ
ENDOCRINE SYSTEM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A hormone secreted by the pineal gland that seems to synchronize our body’s daily rhythms and may induce sleep.
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medulla
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insulin
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calcitonin
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melatonin
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Explanation:
Detailed explanation-1: -Melatonin is a hormone that’s mainly produced by your pineal gland. The importance of pineal melatonin in humans is not clear, but many researchers believe it may help to synchronize circadian rhythms in different parts of your body.
Detailed explanation-2: -The pineal gland is light-sensitive. When it gets dark out, your pineal gland releases melatonin into your body. This may make you start to feel sleepy. This is because melatonin plays a role in regulating your sleep patterns (circadian rhythms).
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