During the day, the suprachiasmatic nuclei are active and function to decrease the pineal gland's secretion of _____________. As a result, our alertness level goes up.

Question

Quizplus · Accepted Answer

The suprachiasmatic nuclei regulate the circadian rhythms, including sleep-wake cycles, by controlling the secretion of melatonin from the pineal gland. During the day, they decrease melatonin production, which increases alertness.

During the Day, the Suprachiasmatic Nuclei Are Active and Function