In response to bright light, the suprachiasmatic nucleus signals the pineal gland to decrease production of melatonin.

Question

Quizplus · Accepted Answer

This is correct. The suprachiasmatic nucleus, located in the hypothalamus of the brain, is responsible for regulating the body's circadian rhythm. When it detects bright light, it signals the pineal gland to decrease production of melatonin, a hormone that helps regulate sleep.

In Response to Bright Light, the Suprachiasmatic Nucleus Signals the Pineal