Pineal gland production of melatonin is stimulated by the _______________ of the hypothalamus.

Question

Quizplus · Accepted Answer

The suprachiasmatic nuclei (SCN) of the hypothalamus are responsible for regulating the body's circadian rhythm, including the production of melatonin by the pineal gland. When the SCN detects darkness, it signals the pineal gland to release melatonin, which promotes sleep. Therefore, choice C is the correct answer. The other options, supraoptic nuclei and paraventricular nuclei, are not involved in the regulation of melatonin production.

Pineal Gland Production of Melatonin Is Stimulated by the _______________